EOOW Flashcards

Question

Define heat stress. [ref. a]

Answer 1

is any combination of air temperature, thermal radiation, humidity, airflow, workload, and health conditions that may stress the body as it attempts to regulate body temperature.

Answer 2

sweating heavily having a raised body temperature feeling dizzy or faint feeling tired and lethargic reduced appetite feeling thirsty being irritable twitching or having painful muscle cramps in the arms, legs or abdomen

Answer 3

Heavy sweating, weakness or tiredness, cool, pale, clammy skin; fast, weak pulse, muscle cramps, dizziness, nausea or vomiting, headache, fainting,

Answer 4

First Aid: Move person to a cooler environment, preferably a well air conditioned room. Loosen clothing.

Answer 5

Temperature: A core body temperature of 104°F (40°C) or higher Skin: Skin that is hot, red, dry, or damp Pulse: A rapid and strong pulse

Answer 6

Here are the first-aid steps for treating heat stroke: Call for emergency help: Dial 911 immediately. Move to a cooler place: Get the person out of the heat and into a shaded or air-conditioned area. Cool the body: Use any available method, such as: Immersing the person in cool water. Applying cold, wet towels or ice packs to the neck, armpits, and groin. Fanning the person while misting with cool water. Remove excess clothing: Take off unnecessary clothing to help lower body temperature. Monitor the person: Check for signs of breathing or consciousness. If unresponsive, be ready to perform CPR.

Answer 7

Heat stroke is considered a medical emergency. It occurs when the body's temperature regulation fails, leading to dangerously high body temperatures. Immediate medical attention is required to prevent severe complications or death.

Answer 8

The responsibility for conducting required heat stress surveys typically falls on designated personnel, such as supervisors or trained heat stress monitors, as outlined by the organization's safety policies. These individuals ensure the surveys are completed accurately and in accordance with regulations.

Answer 9

a. Personnel recovery period: The time needed for personnel to recover from physical or environmental stress before resuming duties. b. PHEL chart: A chart used to determine safe exposure limits to heat stress based on work intensity and environmental conditions. c. WBGT (Wet Bulb Globe Temperature): A measure of heat stress that considers temperature, humidity, wind, and sunlight. d. Psychrometer: A device with wet and dry thermometers used to measure humidity. e. Globe temperature: The temperature measured by a thermometer inside a black globe, accounting for radiant heat. f. Dry bulb temperature: The air temperature measured without considering humidity. g. Relative humidity (wet bulb): The amount of moisture in the air compared to the maximum it can hold, measured using a wet-bulb thermometer. h. TWM: Could refer to various terms; in this context, it might mean "Total Workplace Management" or another relevant definition. i. Stay time: The maximum safe time a person can remain in a hazardous environment before needing to leave or recover.

Answer 10

Dry bulb thermometers should be placed: Where people are working or standing watch. At chest height (around 3 to 5 feet above the deck). Away from vents, fans, hot equipment, or direct sunlight. Where they’re easy to see and check regularly. Dry bulb thermometers should be placed at least 2 feet away from ventilation supply ducts or any direct airflow sources.

Answer 11

e. Supply Officer, Air Boss, and Other Department Heads (1) Ensure DB thermometers are installed per subparagraph 3b(1) and temperatures are monitored and recorded per subparagraphs 3b(3) and 3b(4). Space temperature logs must be reviewed weekly by the division officer. (2) May assign departmental personnel to conduct heat stress surveys. These personnel must be qualified as required in paragraph 5. (3) Ensure the heat stress surveyor conducts heat stress surveys per subparagraphs 3c(4) and 3c(5). (4) Assign and qualify supervisors to review DB temperatures or access AHSS readings and take the required actions per paragraph 3. (5) Review heat stress surveys and ensure stay times for personnel are being properly determined as specified in paragraph 4. Limit personnel heat exposures accordingly, except as approved by the commanding officer in an operational emergency. (6) If maintenance or repair is required, record all heat stress related deficiencies on the CSMP. Appendix B2-B provides heat stress trouble-shooting and recommended repair actions. f. Division Officers (1) Limit personnel heat exposures per established stay times, except as approved by the commanding officer in an operational emergency. (2) If maintenance or repair is required, record all heat stress related deficiencies on the CSMP and TSIMS (CVNs only). Appendix B2-B provides heat stress trouble-shooting and recommended repair actions.

Answer 12

All Hands (1) Obtain prompt medical attention for personnel who exhibit heat stress symptoms. (2) Follow recommended work practices and procedures for controlling heat stress hazards. (3) Complete heat stress training upon reporting aboard.

Answer 13

4. Procedures for Personnel Working Aloft. Complete OPNAV 5100/23 prior to commencing work aloft. a. Do not go aloft on masts, macks, stacks, or kingposts or be suspended over the side by a crane without first obtaining written permission from the OOD in the form of a working aloft checklist as described in paragraph 2. b. Wear respiratory protection designated by the RPPM when working near stacks or exhausts that are actively discharging gases. c. Wear appropriate fall protection equipment per chapter B13, if a fall hazard exists d. Prior to commencement of work, and every 15 minutes thereafter, pass a verbal warning over the one multi-channel: "Do not rotate antennas, energize, or radiate any electrical or electronic equipment while personnel are working aloft." If personnel aloft are in the vicinity of the stacks add: "Do not blow tubes or lift safety valves while personnel are working aloft." e. Inform ships in the vicinity that personnel will be working aloft to ensure they take appropriate action on operation of electrical or electronic equipment. f. Departments concerned must ensure that all radio transmitters and radars that pose RADHAZs are placed in the “STANDBY” position and a sign placed on the equipment that reads: "SECURED. PERSONNEL ALOFT. DATE_______ TIME_______ INITIALS________." g. Position a safety observer on deck near the work being performed. Outfit the safety observer with appropriate fall protection and rescue equipment per chapter B13 to permit rapid emergency assistance, if required. The safety observer must keep the deck area beneath the work aloft free of unnecessary personnel.

Answer 14

To issue regulations and guidance governing the specific duties responsibilities and authority of naval computer and telecommunications.

Answer 15

To provide comprehensive guidance for the safe and. effective operation of the Engineering Department.

Answer 16

A set of written procedures that provide information to operate a shipboard propulsion plant. The EOSS helps engineering personnel at all levels of shipboard operations respond to demands placed on the engineering plant.

Answer 17

Directorate-General for the Environment's policy framework for the protection of the marine environment and the environmental pillar of the Integrated Maritime Policy.

Answer 18

a. Provide for personnel and ship safety and prevent damage to equipment. b. Prevent improper operation when a component, equipment, system or portion of a system is isolated or in an abnormal condition. c. Prevent improper operation when a freeze seal is applied to a system or when other safety devices such as blank flanges are installed for testing, maintenance, or casualty isolation. d. Provide a procedure for use when an instrument is unreliable or not in its normal operating condition. e. Provide standard tag-out procedures. f. Provide a procedure for control of hazardous energy.

Answer 19

Engineering Log. The Engineering Log is a record of engineering system status and operational events on surface ships and submarines. Status information is recorded in the log daily and operational events are recorded at the time they occur.

Answer 20

Automated Heat Stress System

Answer 21

Deck Log. The Deck Log, form OPNAV 3100/99, is a daily record, by watches, of every occurrence of importance concerning the crew and the operation and safety of the ship. Magnetic Compass Record The magnetic compass record is an adjunct to the deck log. Engineering Log. The Engineering Log is a record of engineering system status and operational events on surface ships and submarines. Engineer’s Bell Book. The Engineer’s Bell Book (NAVSEA 3210/1) is an adjunct to the Engineering Log and is a record of events made at the time they occur.

Answer 22

1. tag-out installed DC systems 2. starting up GTG/GTM 3. opening MRG 4. Securing/ opening Fireman 5. tag out single valve to sea 6. Entering IDLH space 7. Energized Equipment 8. Pumping Bilges 9. Bypassing interlocks or safeties 10. Exceeding heat stress stay times

Answer 23

Emergency maneuver the ship to prevent grounding, damage to sonar dome and the ship.

Answer 24

- potable water < 50% - when steering checks fail PMS

Answer 25

when it reaches 25 starts or when you exceed the motor duty cycle

Answer 26

clear the sight glass for watch standers to see.

Answer 27

> 0.1% sediment > 0.4% combined

Answer 28

< 0.1% sediment 0.2% - 0.4% combined If L/O system is operating sample daily and notify CO while troubleshooting. If L/O is NOT operating, you need CO's permission to operate sample daily and notify CO.

Answer 29

between 0.2% and 0.4%

Answer 30

165 F for 24hrs

Answer 31

Settling Tanks

Answer 32

visual sediment test: Let sediment settle, turn it on its side (long side), and observe the sediment line at the bottom of the bottle. broken line = SAT straight sediment line = UNSAT > BS+W

Answer 33

1. re-sample, just to be sure 2. purify it, run LOFSP for 48hrs 3. troubleshoot where sediment is coming from 4. re-sample

Answer 34

When the sample is hazy, heated to 120F +/- 5F for 30 min

Answer 35

Satisfactory < 0.1 % sediment < 0.2 % combined

Answer 36

31 min total

Answer 37

CLEAR: absence of sediment BRIGHT: Absence of water

Answer 38

bottom sediment + water

Answer 39

1. Prior to start 2. Equipment operating 3.Prior to onload 4. Prior to transfer 5. casualty 6. AS + RTE ( LLOSFP discharge side inlet and outlet)

Answer 40

30 + Knots

Answer 41

* Full Power (2 GTM per shaft, all 4 GTM online): 30+ Knots * Tri-Power (2 GTM on one shaft, 1 GTM on other shaft): 28 Knots * Split Plant (1 GTM per shaft, two GTM online): 28 Knots * Trail Shaft (1 GTM online on one shaft, other shaft trailing): 21 Knots * Locked Shaft (one of the shafts is locked in place): 12 Knots

Answer 42

Physiological Heat Exposure Limit

Answer 43

OPNAVINST 5100.19F CH2

Answer 44

Manned watch stations in designated heat stress areas — surveyed daily when occupied. Drill sets or watchstanding over 4 hours in spaces with ≥ 90°F dry bulb temperature. After a heat-related injury or illness in a space. Unmanned spaces when the dry bulb temp reaches or exceeds 100°F. At the Commanding Officer’s discretion based on perceived risk. Follow-on surveys are required until the space returns to acceptable conditions.

Answer 45

The standard method for calculating stay time with stack gases or vapors is: PEL ÷ Measured Concentration × Work Period (usually 480 mins). If conditions are uncertain or high-risk, supervisors may apply a safety factor—like dividing the calculated stay time by 2 or 3—to build in an extra buffer for crew safety.

Answer 46

Watery eyes: Irritation from the gases. Difficulty breathing: Labored or shallow breaths. Tingling sensations: On the tongue, fingertips, or nose. Disorientation: They may appear dizzy, confused, or "drunk." Pale or flushed skin: Depending on the gas and exposure level. Fatigue or weakness: Struggling to stay alert or move normally.

Answer 47

1. WBGT Index (environmental conditions) 2. How hard the scope of work

Answer 48

anything less than 80F dry-bulb

Answer 49

Recovery time is the rest period a person needs after working in a hot environment before safely returning to duty. It’s based on the PHEL curve, type of work, and measured Wet Bulb Globe Temperature (WBGT). Here’s how it’s calculated, in simple terms: Identify the PHEL Curve assigned to the space and task (I to VI). Measure the WBGT using a heat stress monitor. Use the Heat Stress Survey Table (in OPNAVINST 5100.19, Ch. B2) to look up: Maximum allowable time on watch, and Minimum required recovery time (rest in a cool area with water and ventilation). > Example: If your space is at WBGT 85°F under PHEL III, you might get 30 minutes on watch, followed by 30 minutes recovery.

Answer 50

PHEL III: Heavy work (e.g., sustained physical activity, lifting, or machinery operation in hot spaces)

Answer 51

Sounding and Security watchstanders, the correct PHEL curves are: Routine: PHEL I — since their normal duties are classified as light work. Drill/Casualty Response: PHEL II — if activities involve increased physical effort.

Answer 52

PHEL Curve III is most commonly used for Scullery watchstanders.

Answer 53

Per OPNAVINST 5100.19, the two required tools are: A heat stress monitoring card – to record temperature readings (like WBGT) and exposure time limits. A timer or stopwatch – to track time on watch relative to PHEL curve exposure limits.

Answer 54

Space temperature increases due to heat from equipment (like exhaust leaks), poor insulation (damaged or missing lagging), stagnant water in the bilge, inadequate ventilation, and the number of personnel in the space.

Answer 55

dry bulb thermometers (used to monitor space temperature) must be positioned at least 2 feet away from ventilation supply ducts or any direct airflow sources like fans.

Answer 56

At commissioning – ✅ Correct, a baseline noise survey is required when a ship is placed in service. After changes – Clarify this as: after major equipment installation, relocation, or layout changes that could alter noise levels. Every 5 years – Not every 3. Routine periodic noise surveys are typically required every 5 years, or sooner if conditions change or if ordered by Industrial Hygiene.

Answer 57

1. cover sheet 2. 1st page 3. continuation page 4. addendum sheet

Answer 58

Double Hearing Pro

Answer 59

power conversion VLS while using ship service laundry while using scullery sonar skid room fwd/aft IC rooms

Answer 60

5100.19F Chapter 4

Answer 61

Danger to Personnel – Adjustments made to protect crew members from hazardous conditions. TYCOM DFS (Type Commander Deviation from Specifications) – Authorized deviations issued by the Type Commander (TYCOM) when standard specifications cannot be followed. MACALT/SHIPALT (Machinery Alteration/Ship Alteration) – Permanent modifications to equipment or systems that require changes in operational sequencing. CLAD (Class Action Advisory) – Fleet-wide guidance issued to address safety concerns, equipment updates, or operational risks. RMD (Restricted Maneuvering Doctrine) – Temporary adjustments for ship handling in critical situations, prioritizing propulsion control and system reliability. Software Update – Changes to digital controls and automation that impact engineering procedures.

Answer 62

Instruction – Provides guidance on proper tag-out procedures to ensure personnel safety and equipment protection. Active – Tags currently in place on equipment that is restricted from operation. Active to Be Hung – Tags prepared for placement but not yet affixed to equipment. Cleared – Tags that have been removed following verification that the equipment is safe for operation. Instrument Log – A record of instruments affected by tag-outs, ensuring proper tracking and documentation. Audit – Regular inspections to verify compliance with tag-out procedures and identify discrepancies.

Answer 63

High Temperatures (≥200°F) – Prevents accidental exposure to extreme heat, reducing burn risks. Flashpoints (≤200°F) – Ensures containment of flammable substances to prevent ignition hazards. High Pressure (≥1000 PSI) – Prevents sudden pressure release that could cause injury or equipment failure. Oxygen Systems – Reduces the risk of combustion and ensures controlled oxygen flow. Toxic Gas Systems – Prevents exposure to hazardous gases that could endanger personnel. Hull Penetration – Ensures structural integrity and prevents unintended flooding or leaks. Sea-Connected Systems – Prevents uncontrolled water ingress, ensuring ship stability and operational safety.

Answer 64

100% of active tag-outs must be reviewed to verify accuracy and compliance. Periodic audits are conducted to ensure proper procedures are followed. Verification of cleared tag-outs to confirm correct removal and documentation. Review of Tag-Out Record Sheets (TORS) to ensure completeness and proper authorization.

Answer 65

1. DO NOT take thrust control/pitch control from the Bridge. 2. DO NOT secure last engine on each shaft. 3. DO NOT stop the shaft for shafting casualty. 4. DO NOT secure last generator online. 5. DO NOT electrically isolate switchboard. 6. DO NOT perform any planned/corrective PMS or authorize a new tag during RMD.

Answer 66

Place the standby GTG online before taking casualty control actions on the affected GTG with the following exceptions: * Class C Fire in a Generator Switchboard (CCFS) *Class C Fire in a Generator (CCFG) * Metallic sound or loud banging noise in GTG (NVGG) *Over speeding GTG (OSGG) * Class Bravo Fire GTG Module (MBGGM)

Answer 67

- artificially cool the bearing - verify RLOC - Report the OOD periodically on bearing temps and flows, local and remote - cycle s/w hellen strainers - make speed change recommendations to OOD

Answer 68

*EOOW order OD box operator to take pitch control locally from the OD BOX. When alongside; slew pitch to 100%, if not alongside, test for positive pitch control +/- 3%. OD Box operator makes report “Standing by to answer further bells.” If in vicinity of a pier with tugs alongside, take control at the OD box, but DO NOT test for positive control.

Answer 69

Maintain speed, power and steering through difficult maneuvers and combat situations

Answer 70

1. S + A detail and/r entering restricted waters or high traffic areas. 2. Close maneuvering 3. EMERGENCY flight qtrs (time permitting) 4. combat situations

Answer 71

- could release HALON but NOT ON THE LAST GTM - secure fuel to GTM but NOT the service system or last GTM DO NOT: Need permission 1. secure fuel 2. shift S+R

Answer 72

1. If the F/O or L/O leak can be isolated by shifting pumps or filters 2. If the F/O system must be secured to isolate the leak, the EOOW shall request permission from the CO. 3. The EOOW shall not secure lube oil or CRP systems without the CO’s permission. * Do not initiate General Quarters (GQ) or Condition II DC without the CO’s permission. In general, the Engineering space watch standers shall respond to leaks. The Flying Squad may be called away as backup.

Answer 73

Allows us to deviate from casualty control procedures. To maintain speed, electrical power and steering.

Answer 74

1. call it away 2. notify OOD 3. release halon 4. come to single generator ops IAW orders #10

Answer 75

1. Call it away 2. Notify OOD 3. Request take actions 1. with permission, come to single GEN OPS

Answer 76

- During RMD - During flight quarters GREEN DECK

Answer 77

- E- STOP! - DO NOT TEST FOR POSITVE PITCH

Answer 78

AT SEA FIRE PARTY! - set electrical isolation UNLESS it affects propulsion, MUST get permission - DO NOT use Halon, everything else is good *My permission is required to electrically or mechanically isolate equipment or systems affecting propulsion, steering, navigation or combat systems

Answer 79

-CCWS to UCC1 -If not, man SWBD's

Answer 80

5 RPMs/ 5% pitch during RMD

Answer 81

OD Box Aft Steering Plant Control Officer

Answer 82

- Isolate and shift pumps without securing entire systems (L/O + F/O) - Isolate fuel system with CO's permission to trail shaft... then ESTOP

Answer 83

Restrictor valves serve a critical safety and control function—especially during refueling operations in port. Their primary purpose is to limit the flow rate of fuel into tanks, preventing over-pressurization, fuel spills, or structural damage to the system.

Answer 84

F-76 (NSTM 541) - Initial: Ensure no contamination at start - Midstream: Monitor quality during transfer - Final: Verify end quality - Bottom: Detect sediment/water - Free Water Test: Water limit: 40 ppm JP-5 (NSTM 542) - Clear & Bright: Visual clarity check - Particulate Test: Particulate count - Free Water & Sediment: Validate purity - Filter Membrane:Detect fine particles - Bottom Sample: Check tank bottom integrity Sampling Interval: Every 15 minutes or 50,000 gallons received Beginning Detects contamination early before it's all transferred Middle Ensures consistency across the bulk of the transfer End Confirms quality didn’t degrade at the end

Answer 85

during boat ops

Answer 86

INPORT and with in 50NM of land

Answer 87

YES, only for emergencies

Answer 88

depends on the amount in the tank... Gallons in tank/110 then divide by 60min

Answer 89

Max 2.64 mg/L

Answer 90

fireman fills tank group from the top to push the fuel down into the FOTP to service tanks

Answer 91

1. Prior to pulling in 2. Prior to pulling out 3. Before and after RAS 4. Before and after in port refueling

Answer 92

< 0.1 % combined

Answer 93

BS&W, flashpoints and API gravity test

Answer 94

Conduct a BS&W and flashpoint

Answer 95

BEG< MID< END point samples

Answer 96

Test the weight of fuel against water American Petroleum Institute

Answer 97

discharge side of the coalescer

Answer 98

Max 2.62 mg/L

Answer 99

only clear and bright

Answer 100

Test for water using DFWD Test for sediment using CCFD

Answer 101

Digital free water detector test water in fuel

Answer 102

Coalescer Sump Sample 30 min after placing tank on suction

Answer 103

discharge side of the coalecer

Answer 104

Manual Filtration: Use portable filtration equipment to manually filter the fuel before it enters the system. This helps remove water, sediment, and other impurities. Settling Tanks: Allow the fuel to sit in settling tanks for a period of time. This process lets heavier contaminants and water settle at the bottom, which can then be drained off. Frequent Maintenance: Increase the frequency of inspections and maintenance on fuel lines, pumps, and injectors to catch and address any issues caused by unfiltered fuel. Bypass Procedures: Follow ship-specific procedures for bypassing the purifier, ensuring that all safety and operational protocols are adhered to. Monitor Fuel Quality: Regularly test the fuel for contaminants to ensure it meets the minimum quality standards required for safe operation.

Answer 105

Initial Preparations: Ensure the auxiliary lube oil pump runs for at least 15 seconds. Verify that the vent damper opens and the start air valve is ready. Confirm that the fuel manifold drain valves are energized open. Open the 5th, 10th, and 14th stage diffuser valves. Ignition Phase: At approximately 2,200 RPM, the fuel manifold drain valves close, and the ignition exciter is energized. The fuel shutoff valve opens, and the fail-to-fire circuit is enabled. Acceleration Phase: At around 7,500 RPM, the ignition exciter de-energizes, and one of the 14th stage diffuser valves closes. Self-Sustaining Speed: At 9,100 RPM, the start air valve closes, and the starter disengages, indicating the generator has reached self-sustaining speed. Final Adjustments: At 12,780 RPM, the 5th and 10th stage bleed air valves close, and the remaining 14th stage diffuser valve closes. Overspeed shutdown protection is enabled.

Answer 106

Weapons Release: Authorization to fire weapons or engage targets. Deviation from Pre-approved Procedures: Permission to modify or deviate from established protocols. Discharge Over Side (Outside Pre-approved Normal Operations): Approval is required for any overboard discharge beyond normal authorized operations. Changing Watchbills: Permission to alter established watch rotations and assignments. Conducting Drills: Authorization for running drills, especially those affecting ship operations or readiness. Set/Secure RMD (Restricted Maneuvering Doctrine): Approval to set or secure RMD during critical operations. Tasking that Breaks Protected Sleep: Permission for assignments or tasks that interfere with crew members’ protected sleep hours. Entering Restricted Waters: Authorization to navigate in high-risk or restricted areas. Engineering Plant Operations: Major changes to the engineering plant configuration, such as starting or stopping main engines or generators. Personnel Transfers: Approval for transferring personnel to or from the ship. Alcohol Consumption: Granting permission for events involving alcohol, such as port calls or special occasions. Diving Operations: Authorization for diving activities around the ship.

Answer 107

The EDORM is the manual that outlines how the ship's engineering department is organized and operates. It sets the responsibilities for each role and ensures readiness, efficiency, and safety in engineering operations. It's tailored to each ship to meet specific needs.

Answer 108

* No discharge is permitted * Sterilize or disinfect, store, and transfer ashore, no discharges. * If health and safety are threatened, sterilize or disinfect, pack and weigh for negative buoyancy, and report to operational commander, then dispose >50NM. Discharge of sharps are not permitted still.

Answer 109

* If in port, discharge to pier collection facilities. * If underway, discharge is permitted.

Answer 110

* >3NM: direct disposal permitted

Answer 111

* 0-12 NM underway: discharge 12 NM: discharge 50 NM: discharge permitted if operating conditions require at sea disposal (safety of ship/crew). Each instance must be determined by CO and must be recorded.

Answer 112

* 3-12 NM: pulped or comminuted food/ pulped paper and cardboard. * >12 NM : all previous, ash from incinerated garbage, shedded metal and glass placed in burlap sacks. * If pulper/ shredder is inoperable and CASREP’d, CO may authorize minimum direct discharge of unprocessed garbage >25NM

Answer 113

* No discharge of plastics allowed during normal operation. * If plastic waste processor is inoperable, and health and safety is a concern, plastic can be discharged with CO permission > 50NM.

Answer 114

Centrifugal Purification – This method uses high-speed centrifuges to separate contaminants like water, sludge, and solid particles from the oil. It ensures clean lubrication for critical machinery, reducing wear and tear. Filtration – Oil passes through specialized filters that trap impurities. Different types of filters, such as depth filters and fine mesh filters, help remove contaminants at various levels, ensuring optimal oil quality.

Answer 115

Batch Purification: In this method, all the oil is removed from a storage tank (such as a sump or settler) and processed separately before being returned to a clean reservoir. This is typically done when the machinery is not operating, allowing for a thorough purification process. Continuous Purification: This method involves taking a portion of the oil from a tank, purifying it, and recycling it back into the same system. It can be used while equipment is operating, but it is generally less efficient than batch purification.

Answer 116

Perform the Bright Test – Hold the sample in front of a strong light source to check for cloudiness or free water. Conduct the Transparency Test – If the sample is cloudy, heat it to 120 ± 5°F and check if printed text can be read through the oil. Use Limits for Equipment with On-Line Purifiers – If contamination is confirmed, operate the machinery for 48 hours while investigating the cause. Purification Process – If contamination persists, continuously recirculate the oil through a centrifugal purifier until a clean sample is obtained. Secure Equipment if Necessary – If contamination cannot be resolved within 48 hours, secure the equipment unless the Commanding Officer (CO) directs continued operation.

Answer 117

Section 3 – Covers CRP system operation and maintenance, including oil quality standards. Section 5 – Discusses contamination control, including procedures for detecting and removing water and sediment. Appendix A – Provides testing and evaluation criteria for CRP lube oil samples.

Answer 118

refers to a test method used for evaluating lubricating oil contamination, particularly for detecting water presence. The procedure typically involves heating the oil sample to a specific temperature (usually around 120°F ± 5°F) to observe changes in clarity or separation of contaminants. This helps determine whether the oil is safe for continued use or requires purification.

Answer 119

A transparency test is a method used to evaluate the clarity of lubricating oil. It helps determine whether the oil is contaminated with water or other impurities. The process involves: Heating the Oil Sample – The sample is warmed to 120 ± 5°F to ensure accurate assessment. Checking Clarity – The sample is held up to a light source with printed text behind it. Reading Visibility – If the text can be clearly read through the oil, it passes the transparency test. If the text is obscured, the oil fails and may require purification or replacement.

Answer 120

Main Reduction Gear (MRG) Controllable Reversible Pitch (CRP) Propeller System Line Shaft Bearings (LSB) Low-Pressure Air Compressors (LPAC) Hydraulic Systems

Answer 121

A test used to assess water and particle contamination in lubricating oil samples, particularly for equipment without on-line purification capability. If an oil sample fails the Transparency Test, the Visible Sediment Test, or contains free water, the BS&W test is conducted to determine contamination levels.

Answer 122

To ensure the cooling system is functioning properly and to detect potential contamination or system issues. Specifically, the sample helps: Monitor Water Quality – Ensures the cooling water is free from contaminants that could affect heat exchange efficiency. Detect Oil Leaks – Identifies any lube oil contamination in the cooling water, which could indicate a seal or gasket failure. Prevent Corrosion – Checks for proper water chemistry to avoid corrosion in the cooling system. Ensure Heat Transfer Efficiency – Confirms that the cooling water is maintaining the correct temperature for optimal lube oil performance. This sampling process is crucial for maintaining the integrity of the MRG lubrication system and preventing premature wear or overheating.

Answer 123

Clear & Bright Test – Ensures fuel clarity and absence of free water. Bottom Sediment & Water (BS&W) Test – Checks for contamination levels. API Gravity Test – Measures fuel density to verify quality. Flash Point Test – Confirms fuel safety for combustion. Purifier Discharge Sample – Taken 5 minutes after initiation and every 30 minutes thereafter to monitor purification effectiveness

Answer 124

A fuel sample is taken to ensure the fuel meets operational standards and is free from contamination. Specifically, sampling helps: Detect Water & Sediment – Prevents damage to fuel systems by identifying impurities. Verify Fuel Quality – Ensures the fuel meets Navy Distillate (F-76) specifications. Monitor System Integrity – Identifies leaks or cross-contamination from other fluids. Ensure Proper Combustion – Confirms the fuel’s flash point and API gravity for efficient engine performance.

Answer 125

Water Content – Typically 0.05% max to prevent contamination. Sediment Levels – Should not exceed 0.01% to avoid clogging filters. Flash Point – Minimum 140°F for safe combustion. API Gravity – Between 36-40 to ensure proper fuel density. Sulfur Content – Must meet MIL-PRF-16884 specifications.

Answer 126

An API Gravity Test is conducted to measure the density of fuel oil compared to water. This test helps determine fuel quality and suitability for use in naval propulsion systems. Specifically, the test is used to: Verify Fuel Composition – Ensures the fuel meets MIL-PRF-16884 specifications. Detect Contamination – Identifies water or sediment that may affect performance. Optimize Combustion Efficiency – Confirms the fuel’s density for proper engine operation. Ensure Compatibility – Helps determine if fuel blends are within acceptable limits.

Answer 127

The maximum allowable water content in JP-5 fuel is typically 0.003% (30 ppm) The maximum allowable sediment content in JP-5 fuel is typically 1.0 mg/L

Answer 128

The frequency of stripping service and storage tanks depends on operational guidelines and contamination risk factors. Daily – If fuel contamination risks are high. Weekly – As part of routine maintenance. Before & After Replenishment at Sea (RAS) – To ensure fuel quality. During Fuel Transfers – To prevent water and sediment buildup.

Answer 129

Tag-Out Record Sheet (TORS) – Documents all active tag-outs, including equipment isolation details. Instrument Log – Tracks instruments that require calibration or verification. Danger/Caution Tags – Contains physical tags used for hazardous energy control. Tag-Out Audit Records – Maintains records of periodic audits to ensure compliance. Procedural References – Includes relevant sections from NAVSEA S0400-AD-URM-010/TUM for guidance.

Answer 130

Double barrier protection is required when working on systems that contain hazardous energy, such as high-pressure steam, fuel, or electrical systems.

Answer 131

Immediate Notification – Report the missing tag to the Authorizing Officer (AO). Suspend Work – Halt any operations related to the tagged-out equipment until the issue is resolved. Conduct Investigation – Determine whether the tag was improperly removed, lost, or damaged. Reissue & Verify – If necessary, issue a replacement tag and verify proper placement. Document the Incident – Record the missing tag in the Tag-Out Record Sheet (TORS) and conduct an audit.

Answer 132

Calibration – The instrument is still functional but requires adjustment to ensure accuracy. It is tested against a known standard and corrected if necessary. Out of Commission – The instrument is non-functional or unreliable. It cannot be used until repaired or replaced.

Answer 133

Watch/work length is 4 hours or less and the dry bulb temperature (DBT) exceeds 100°F. Watch/work length is greater than 4 hours and the DBT exceeds 90°F. Personnel are working in PHEL IV through PHEL VI conditions with a DBT of 85°F or higher. A heat injury (heat exhaustion or heat stroke) occurs in any space. Before conducting engineering casualty control (ECC) drills lasting more than 3 hours. The commanding officer determines that a heat stress situation may occur. Follow-on surveys are required if conditions change significantly.

Answer 134

Stay time in an engineering space is affected by stacked gases due to their impact on air quality, oxygen levels, and exposure limits. When multiple gases accumulate, they can reduce breathable oxygen, increase toxicity, and accelerate heat stress, requiring personnel to limit their time in the space. Oxygen Deficiency – High concentrations of gases like carbon dioxide (CO₂) or nitrogen (N₂) can displace oxygen, reducing safe exposure time. Toxic Gas Accumulation – Gases such as carbon monoxide (CO), hydrogen sulfide (H₂S), and volatile organic compounds (VOCs) can cause dizziness, nausea, or unconsciousness. Heat Stress Impact – Stacked gases can trap heat, increasing body temperature and reducing endurance. Gas-Free Engineering (GFE) Procedures – Navy regulations require gas-free testing before entry into confined spaces to determine safe exposure limits.

Answer 135

The EDORM covers: Watch-standing Procedures – Guidelines for engineering watch officers and personnel. Maintenance & Readiness – Standards for equipment upkeep and operational efficiency. Training & Qualifications – Requirements for engineering personnel certification. Safety & Compliance – Regulations for hazardous operations and emergency protocols.

Answer 136

The EDORM establishes the roles, responsibilities, watchstanding procedures, maintenance policies, and safety regulations for the engineering department aboard Navy vessels.

Answer 137

The Chief Engineer (CHENG) is responsible for enforcing EDORM policies, ensuring the training, qualification, and readiness of engineering personnel.

Answer 138

EOOW candidates must complete formal training, onboard qualifications, oral boards, and practical demonstrations to ensure they can effectively manage engineering spaces.

Answer 139

he EOOW must secure affected systems, follow casualty control procedures, notify the chain of command, and coordinate damage control efforts.

Answer 140

EDORM follows the Tag-Out Users Manual (TUM), requiring personnel to document, verify, and audit tag-outs to prevent accidental equipment activation.

Answer 141

The Engineering Log documents watch-standing events, system conditions, maintenance actions, and casualties. It is maintained by the Engineering Officer of the Watch (EOOW).

Answer 142

Purpose of Locked Forward Engagement Prevents Shaft Movement – Locking the turning gear ensures the main propulsion shaft remains stationary, preventing unintended rotation due to currents or external forces. Maintains Alignment – Keeping the shaft in a fixed position helps maintain proper alignment of the propulsion system, reducing wear on bearings and gears. Safety During Auxiliary Operations – Since the ship is auxiliary steaming, meaning it's using secondary power sources rather than main propulsion, locking the shaft prevents accidental engagement of the main engine. Protects Against Thermal Expansion – If the shaft were left free to move, temperature changes could cause uneven expansion, leading to mechanical stress.

Answer 143

Purpose of Locked Forward Engagement Prevents Shaft Movement – Locking the turning gear ensures the main propulsion shaft remains stationary, preventing unintended rotation due to currents or external forces. Maintains Alignment – Keeping the shaft in a fixed position helps maintain proper alignment of the propulsion system, reducing wear on bearings and gears. Safety During Auxiliary Operations – Since the ship is auxiliary steaming, meaning it's using secondary power sources rather than main propulsion, locking the shaft prevents accidental engagement of the main engine. Protects Against Thermal Expansion – If the shaft were left free to move, temperature changes could cause uneven expansion, leading to mechanical stress.

Answer 144

3 years after date of last entry

Answer 145

Last calendar day of each month

Answer 146

Daily by EOOW and DIVO, monthly by CO

Answer 147

Ingestion of airborne particles can lead to severe damage in gas turbine machinery. Damage may include erosion and corrosion of vanes and blades, excessive wear on bearings, seals, and most importantly, as seen on the Allison 501 engines, the blockage of cooling air passages with resulting of temperature and damage to hot section components. With this deterioration of hot section components, the gas turbine may not perform up to rated load specifications. It is requirement that foam pags be correctly installed to reduce engine damage in a sand( Persian gulf, red sea, suez canal), volcanic ash or industrial environment

Answer 148

Weepage- a visible sheen on the fitting, flange, or hose that does not meet the criteria for seepage, leakage, or running leakage Seepage- a loss of fluid from 1 to 5 drops in 5 minutes. Leakage- a loss of fluid from 6 to 10 drops in 5 minutes Running leakage- a loss of fluid in excess of 10 drops in 5 minutes.

Answer 149

Tells command what is wrong with equipment, we receive them monthly

Answer 150

The Engineering Bell Log, often maintained using NAVSEA Form 3120/1, is a legal record of all orders affecting the movement of a ship’s propellers. It’s required to be maintained in Central Control Station (CCS) whenever propulsion orders are issued—whether manually or electronically—during operations. Specifically, it's required: Whenever the ship is underway, regardless of whether propulsion is being actively used. During maneuvering evolutions, such as getting underway, mooring, anchoring, or conducting special sea details. Any time propulsion orders are given, including speed changes, engine orders, or shaft rotations. The log ensures accountability and provides a historical record for engineering operations. It’s considered a permanent legal document, so accuracy and timeliness are critical

Answer 151

Restricted Maneuvering is set during operations where the ship's ability to maneuver freely is limited due to specific tasks or conditions. Here are five common situations: Underway Replenishment (UNREP): When the ship is refueling or transferring supplies at sea. Flight Operations: During the launch or recovery of aircraft. Strait Transits: Navigating narrow waterways or channels. Special Sea and Anchor Detail: Entering or leaving port. Towing Operations: When the ship is towing another vessel or object.

Answer 152

Restricted Maneuvering is a condition set during specific operations where the ship's ability to maneuver freely is limited. This status is declared to ensure the safety of the ship, crew, and equipment during critical tasks like underway replenishment, flight operations, or navigating narrow channels.

Answer 153

During a Controllable Pitch Propeller (CRP) casualty near the pier, the following actions are typically taken to ensure safety and minimize damage: Secure the CRP system: Stop any further operation of the propeller to prevent worsening the issue. Notify the Commanding Officer (CO): Immediate communication is essential for decision-making. Engage emergency propulsion measures: Use auxiliary systems or tugs to maintain control of the ship. Assess the situation: Engineering personnel evaluate the extent of the casualty and determine repair options. Coordinate with the pier team: Ensure safe docking or anchoring procedures to avoid collisions or damage.

Answer 154

MPR (Max Plant Reliability): This is an engineering configuration focused on ensuring maximum reliability of the ship's systems. It involves bringing all critical systems online to provide redundancy and minimize the risk of failure during high-stakes operations, such as combat scenarios or underway replenishment. The priority here is operational readiness, even at the expense of fuel efficiency. RMD (Restricted Maneuvering Doctrine): This is an operational condition set during specific scenarios where the ship's ability to maneuver freely is limited. Under RMD, the focus is on maintaining propulsion and steering at all costs to ensure the ship's safety during critical operations, such as navigating narrow channels, flight operations, or towing.

Answer 155

The Engineering Officer of the Watch (EOOW) is required to contact the Combat Systems Officer of the Watch (CSOOW) in situations where engineering systems and combat systems intersect or when coordination is essential for ship operations. Some examples include: Power Distribution Issues: If there are fluctuations or failures in power supply affecting combat systems. Cooling System Disruptions: When cooling systems shared between engineering and combat systems are compromised. Casualty Reports: Any casualties or malfunctions in engineering systems that could impact combat readiness. Configuration Changes: When adjustments to engineering systems might affect combat systems' functionality. Emergency Situations: During emergencies like fires, flooding, or other incidents requiring coordinated efforts.

Answer 156

Major equipment failures affecting propulsion, power generation, or critical systems. Casualties to engineering systems that impact the ship's operational readiness. Fuel or oil spills within engineering spaces or overboard. Significant deviations from standard operating procedures or engineering practices. Emergencies such as fires, flooding, or hazardous material incidents in engineering spaces. Changes to the ship's engineering configuration or operational capabilities. Environmental compliance issues, such as violations of discharge regulations. Critical maintenance or repairs requiring external support or extended downtime. Engineering-related safety incidents involving personnel or equipment. Unusual system performance or anomalies that could indicate potential failures.

Answer 157

Major configuration changes to engineering systems, such as altering propulsion or power generation setups. Bypassing safety interlocks or alarms for critical systems. Initiating emergency repairs that could impact the ship's operational readiness. Securing or isolating essential equipment during operations. Conducting tests or maintenance on systems that affect propulsion or steering. Deviating from standard operating procedures for engineering systems. These permissions ensure that the CHENG is aware of and approves actions that could have significant consequences for the ship's safety and performance.

Answer 158

are required to conduct specific checks and tasks during their watch to ensure the ship's systems are operating efficiently and safely. These typically include: Monitoring system performance: Continuously check propulsion, power generation, and auxiliary systems for any anomalies. Logging operational data: Record system parameters and events in the engineering log for accountability and analysis. Conducting routine inspections: Perform physical checks of equipment to identify potential issues early. Responding to alarms: Address any system alarms or warnings promptly to prevent escalation. Communicating with other watch standers: Coordinate with the EOOW and other personnel to ensure smooth operations.

Answer 159

Electrical Load Shifting: Alternating between generators or power sources to balance usage and prevent over-reliance on a single unit. Pump Alternation: Shifting between redundant pumps, such as fire pumps or bilge pumps, to ensure all units remain operational. Valve Operations: Exercising valves to prevent sticking and ensure they function properly when needed. Battery Rotation: Rotating or testing backup batteries to maintain their charge and reliability. Air Compressor Usage: Alternating between air compressors to balance operational hours. These practices are part of preventive maintenance to ensure equipment reliability and longevity.

Answer 160

The difference in equipment line-up between Q-1 and Q-2 typically depends on the operational requirements and readiness levels of the ship. While specific details can vary by ship class and mission, here are some general distinctions: Q-1 (Full Power): This configuration is used when the ship requires maximum propulsion and power generation capabilities. All main engines, generators, and auxiliary systems are online to ensure redundancy and peak performance. Q-2 (Split Plant): This setup is used during less demanding operations to conserve fuel and reduce wear on equipment. Only a portion of the main engines and generators are online, while others remain in standby mode. These configurations are part of the ship's engineering doctrine to balance operational readiness with efficiency.

Answer 161

Temporary Standing Orders (TSOs) in the engineering plant or ship are directives issued to address specific situations or operational needs that fall outside the scope of standard procedures. These orders are typically issued by the Commanding Officer (CO) or Chief Engineer (CHENG) and are designed to ensure safety, compliance, and operational readiness.

Answer 162

Departure From Specifications (DFS) refers to situations where equipment, systems, or operations deviate from established standards or specifications. These departures are typically documented and approved by the appropriate technical authority to ensure safety and compliance.

Answer 163

Major DFS: This type affects critical aspects such as performance, durability, reliability, maintainability, interchangeability, or safety. It can also impact system design parameters like schematics, flow pressures, temperatures, or compartment arrangements. Major DFS requires higher-level approval due to its potential impact on the ship's operational capabilities. Minor DFS: This type involves deviations that do not affect the above critical factors. It typically pertains to less significant issues that can be resolved without compromising the ship's performance or safety. The key difference lies in the severity and impact of the deviation. Major DFS has a significant effect on the ship's functionality or safety, while Minor DFS involves less critical deviations

Answer 164

The governing instruction for submitting a Departure From Specifications (DFS) is NAVSEA Instruction 5400.95G. The specific details regarding the DFS process, including submission and approval, are outlined in Enclosure (4).

Answer 165

The positioning of dry-bulb thermometers onboard ships is crucial for accurate heat stress monitoring. Here are the key requirements: Location: Thermometers must be placed at watch and workstations where heat-stress conditions may exist. Height: They should be mounted at a height that represents the temperature experienced by personnel, typically at chest level. Ventilation: Thermometers can be placed in or out of the ventilation air stream but must be at least 2 feet away from any supply ventilation terminal or opening. Material: They should be hung using non-heat-conducting materials like plastic or string, avoiding metal wires. Avoidance of Heat Sources: Position them to minimize the influence of adjacent heat or cold sources, ensuring they are not in direct contact with hot or cold structural surfaces.

Answer 166

The Physiological Heat Exposure Limits (PHEL) curves used onboard Fleet Support Ships (FSH) vary depending on the type of work and environmental conditions. Here's a breakdown: Sounding and Security: Typically, PHEL Curve II or III is applied, as these roles involve moderate physical activity in potentially warm spaces. In-Space Watchstanders: Depending on the specific space and activity level, PHEL Curve III or IV may be used, especially in areas with higher heat exposure. Scullery: Due to the combination of physical activity and heat from dishwashing equipment, PHEL Curve IV or V is often applied.

Answer 167

The presence of stack gases and fuel vapors significantly impacts personnel stay times in heat-stress environments. These substances can exacerbate heat stress by reducing air quality and increasing the physiological strain on individuals.

Answer 168

Heat Stroke (most severe): Confusion or disorientation. Loss of consciousness. Seizures. Red, hot, dry skin or excessive sweating. Very high body temperature. Heat Exhaustion: Heavy sweating. Cool, moist skin. Headache. Nausea or vomiting. Dizziness or lightheadedness. Weakness or fatigue. Rapid heartbeat. Heat Cramps: Painful muscle cramps, often in tired muscles. Excessive sweating. Low salt levels in the body. Heat Rash: Skin irritation or "prickly heat." Red bumps or rash caused by sweat not evaporating properly.

Answer 169

The Time Weighted Mean (TWM)—often called the Time Weighted Average (TWA) in occupational safety—is the average exposure to a particular hazard (like noise or heat) over a given time period, usually an 8-hour work shift. It's used to determine whether a worker's exposure remains within safe limits, even if the intensity of exposure varies throughout the day. Example (simplified): If someone works: 2 hours at 90 dB, 4 hours at 85 dB, 2 hours at 80 dB, the TWA noise level would combine those values, factoring in both intensity and duration, to calculate the overall average risk. TWA is key in heat stress, noise exposure, and chemical safety evaluations.

Answer 170

Surveys are not necessarily required at the hottest part of the day, but conducting them during this time can be beneficial for certain assessments, such as heat stress evaluations. Here's why: Heat Stress Monitoring: The hottest part of the day provides the most extreme conditions, which are critical for evaluating the effectiveness of cooling systems, ventilation, and protective measures. Realistic Exposure Assessment: Conducting surveys during peak heat allows for a more accurate understanding of personnel exposure and the adequacy of preventive measures. Operational Impact: Surveys at this time can help identify areas where adjustments are needed to maintain safety and efficiency.

Answer 171

An Initial Voltage Verification (IVV) check is a safety procedure used to confirm the absence of voltage in electrical equipment before performing any work on it. The IVV process typically involves: Testing the equipment with a voltage meter to verify it is live. De-energizing the equipment. Retesting to confirm the absence of voltage. Finally, rechecking the meter on a known live source to ensure its accuracy

Answer 172

Medium Risk: Voltages in the range of 50 to 1,000 volts AC or 120 to 1,500 volts DC are generally considered medium risk. These levels can cause serious electrical shocks or burns if proper precautions aren't taken2. High Risk: Voltages above 1,000 volts AC or 1,500 volts DC are classified as high risk. These levels pose significant dangers, including severe electrical burns, arc flashes, and even fatalities

Answer 173

A safe-to-start voltage check is a procedure used to verify that electrical equipment is operating within its expected voltage range before starting or energizing it. This ensures the equipment is safe to use and prevents potential damage or hazards caused by abnormal voltage levels.

Answer 174

The Questemp 48N is a heat stress monitor designed to measure environmental conditions and help prevent heat-related illnesses. It uses a waterless wet bulb sensor to calculate Wet Bulb Globe Temperature (WBGT), eliminating the need for traditional wet bulb maintenance.

Answer 175

This chapter provides guidance on: Heat stress effects and environmental measurements. Preventive measures such as hydration, acclimatization, and work/rest cycles. Heat illnesses and injuries, including symptoms and treatment. Training and reporting requirements for Navy personnel. Ship design resources to mitigate heat stress risks.

Answer 176

A: Ships incorporate ventilation systems, insulation, cooling stations, and designated heat stress monitoring programs to minimize excessive heat exposure.

Answer 177

Hydration: Drink plenty of water. Work/rest cycles: Alternate work and rest periods based on WBGT readings. Ventilation: Improve airflow in confined spaces. Acclimatization: Gradually expose personnel to high temperatures to build tolerance. Proper clothing: Wear lightweight, breathable uniforms when possible.

Answer 178

Heat stress occurs when environmental conditions, physical exertion, and protective clothing cause excessive body heat buildup. It is a serious concern aboard Navy ships, as it can lead to heat-related illnesses, impair judgment, and affect operational readiness.

Answer 179

It provides policy guidance on environmental compliance, conservation, pollution prevention, and remediation for all Navy ships and shore activities. This instruction covers: Environmental compliance with federal laws and regulations. Pollution prevention strategies for waste management and hazardous materials. Natural and cultural resource conservation efforts. Environmental planning and impact assessments for Navy operations.

Answer 180

Directive, which establishes policies and procedures to prevent hearing loss among Department of Defense personnel due to occupational and operational noise exposure. This instruction covers: Noise measurement and control to reduce exposure. Hearing protection requirements for personnel. Audiometric monitoring to track hearing health. Training and education on hearing conservation. Recordkeeping and program evaluation to ensure compliance.

Answer 181

It provides guidance on the procedures required to ensure proper documentation and verification of shipboard systems and equipment. This chapter includes: Inspection requirements for ship systems and components. Testing protocols to verify operational readiness. Recordkeeping standards for maintenance and performance tracking. Reporting procedures for documenting findings and corrective actions.

Answer 182

The Fuel Oil (FO) Quality Management Program ensures operational efficiency and environmental compliance by maintaining fuel purity, optimizing engine performance, and minimizing risks. It establishes standard procedures for fuel handling, storage, testing, and treatment to prevent contamination, reduce maintenance needs, and safeguard personnel and equipment. By adhering to these protocols, naval vessels enhance reliability, prolong machinery lifespan, and meet regulatory standards. Let me know if you need further refinement.

Answer 183

Fuel sampling ensures proper fuel quality management and helps detect contamination. According to NSTM S9086-SN-STM-010/CH-541, the following samples are obtained as follows: All Levels Sample – Collected by lowering a sampling device into the fuel tank and retrieving fuel from multiple depths to provide a representative mixture of the entire tank’s contents. Bottom Sample – Obtained from the lowest point of a fuel tank to check for water, sediment, and other contaminants that settle over time. Line Sample – Taken from fuel lines at designated sampling points to assess fuel integrity as it moves through the distribution system. Sounding Sample – Collected using a sounding tape or rod to measure fuel levels and check for possible contamination at various depths. Thief Sample – Drawn using a thief sampler, which allows extraction of fuel from a specific depth within a tank without disturbing other fuel layers. Each sample type serves a specific purpose in monitoring fuel condition and maintaining operational readiness.

Answer 184

Fuel oil logs and reports play a crucial role in maintaining fuel quality and operational readiness aboard naval vessels. According to NSTM S9086-SN-STM-010/CH-541, these documents serve the following purposes: FO Analysis Report – This report provides detailed results from fuel oil testing, including contamination levels, sediment presence, water content, and overall fuel integrity. It is used to track trends in fuel quality over time and determine necessary corrective actions such as filtration or treatment. FO Quality Test Log – This log records routine fuel quality tests conducted on board, documenting sample collection dates, testing methods, and observed fuel conditions. It helps ensure compliance with fuel management standards and assists in identifying potential fuel degradation before it impacts engine performance. These records are essential for maintaining operational efficiency, preventing equipment malfunctions, and ensuring safe fuel handling procedures.

Answer 185

Flashpoint – The lowest temperature at which fuel vapor can ignite when exposed to an open flame or spark. It is critical for fuel storage and handling safety. API Gravity/Specific Gravity/Density – API gravity measures the weight of petroleum liquids relative to water. Specific gravity compares a fuel’s density to water, while density refers to mass per unit volume. Bottom Sediment and Water (BS&W) – Contaminants such as dirt, sludge, and water that accumulate at the bottom of fuel tanks, affecting fuel quality and system performance. Free Water – Water present in fuel that is not dissolved, often found in droplets or layers within storage tanks. Sediment – Solid impurities in fuel, including rust, dirt, and organic matter, which can clog filters and fuel injectors. Cetane Number – A rating that indicates the combustion quality of diesel fuel. A higher cetane number signifies better ignition and smoother engine operation. Clear and Bright – A visual inspection standard indicating fuel is free of visible contaminants and water when held in a transparent container. Cloud Point – The temperature at which paraffin wax begins to crystallize in fuel, affecting flow properties in cold conditions. Dissolved Water – Water molecules that are chemically integrated into fuel rather than existing as free droplets. Emulsion – A mixture where water is dispersed throughout fuel in tiny suspended droplets, often requiring separation or treatment. Entrained Water – Microscopic water particles suspended within fuel, distinguishable from free water. Calorific or Heating Value – The amount of energy released when fuel is combusted, determining its efficiency in generating power.

Answer 186

JP-5 (F-44 Fuel) – A high-flashpoint kerosene-based aviation fuel used primarily in naval aircraft operations, designed for safe storage aboard ships. MOGAS (Motor Gasoline) – Standard automotive gasoline used in auxiliary equipment aboard naval vessels; it has lower flashpoint compared to JP-5. F-76 Fuel – The primary fuel for naval propulsion systems, similar to commercial diesel but meets military specifications for stability, combustion efficiency, and cleanliness. F-75 Fuel – A special-grade fuel designed for gas turbines; it has reduced impurities and optimized combustion properties for turbine engines. Viscosity (Kinematic) – A measure of a fluid’s resistance to flow under gravity, crucial for fuel handling and combustion efficiency. Ash Content – The residual inorganic material left after fuel combustion, which can cause fouling and system damage. Sulfur Content – The amount of sulfur in fuel, impacting emissions and corrosion resistance in ship fuel systems. Water Indicating Paste – A paste applied to sounding tapes to detect the presence of water in fuel tanks; it changes color upon contact with water. Saltwater Compensation System – A system used in naval vessels to adjust for fuel consumption by replacing used fuel with seawater to maintain stability and ballast. SNOK (Standard Navy Operating Knowledge) – A collection of operational guidelines and procedural knowledge supporting engineering operations aboard naval vessels.

Answer 187

The minimum requirements for testing Fuel Oil (FO) ensure that fuel quality remains within operational standards and prevent contamination-related issues. Based on NSTM S9086-SN-STM-010/CH-541, key testing requirements include: Flashpoint Testing – Determines the lowest temperature at which fuel vapors ignite, ensuring safety in handling and storage. Water and Sediment Content – Assesses contamination levels to prevent clogging, corrosion, and inefficiencies in fuel systems. API Gravity and Density – Measures fuel weight relative to water to verify consistency and suitability for naval operations. Viscosity – Ensures proper fuel flow for combustion efficiency and mechanical performance. Clear and Bright Test – A visual inspection method to confirm fuel is free of visible contaminants. Sulfur Content Analysis – Determines sulfur levels to control emissions and prevent corrosive damage in engine components. Bottom Sediment and Water (BS&W) Testing – Detects settled impurities and water accumulation at the bottom of fuel tanks. Fuel Stability and Compatibility Tests – Verifies fuel integrity over time, preventing degradation and operational issues. These tests are performed regularly through sampling at various system points to maintain fuel reliability and operational readiness.

Answer 188

Fuel oil (FO) testing equipment plays a crucial role in maintaining fuel quality and operational efficiency aboard naval vessels. Based on NSTM S9086-SN-STM-010 and NSTM S9086-SP-STM-010, here are their purposes: Centrifuge – Used to separate water, sediment, and other impurities from fuel through high-speed rotation. It improves fuel cleanliness and reduces the risk of contamination-related system failures. Naviflash – A specialized flashpoint tester that determines the temperature at which fuel vapors ignite, ensuring compliance with safety standards. CCFD/DFWD (Contaminated Fuel Detector/Distillate Fuel Water Detector) – These detectors analyze fuel for water content and contaminants, helping prevent corrosion, microbial growth, and combustion inefficiencies. Hydrometer/Digital Density Meter – Measures fuel density to verify consistency and proper fuel composition, ensuring optimal engine performance and adherence to fuel specifications. Each piece of equipment ensures reliable fuel operation, reduces maintenance issues, and supports compliance with military fuel standards.

Answer 189

The maximum Bottom Sediment and Water (BS&W) content for Fuel Oil (FO) is a critical parameter to ensure fuel quality and operational efficiency. According to Ship Information Book (SIB) [Ref. g], the maximum allowable BS&W limit is typically 0.1% by volume for shipboard fuel systems. Maintaining BS&W within acceptable limits is essential for: Preventing fuel system contamination – Excess sediment and water can clog filters, corrode equipment, and reduce combustion efficiency. Ensuring proper combustion – High water content reduces fuel energy output and may cause operational failures. Protecting machinery – Sediment buildup can lead to excessive wear in fuel injectors and pumps. Regular testing using Bottom Sediment and Water (BS&W) tests, filtration systems, and proper fuel handling procedures helps ensure compliance with fuel management standards.

Answer 190

The minimum flash point for Fuel Oil (FO) is a key safety parameter that determines the lowest temperature at which fuel vapors can ignite when exposed to an open flame or spark. According to the Ship Information Book (SIB) [Ref. g], the standard minimum flash point for naval fuel oil is typically 140°F (60°C). Maintaining an appropriate flash point is crucial for: Fire prevention – Ensuring the fuel remains stable under normal operating and storage conditions. Safe handling and storage – Reducing the risk of accidental ignition aboard naval vessels. Compliance with military fuel standards – Meeting operational and regulatory requirements for shipboard fuel. Regular flash point testing ensures fuel quality remains within acceptable limits and supports mission readiness.

Answer 191

During fuel replenishment, proper sampling procedures ensure that the transferred fuel meets operational standards and is free from contaminants. Based on NSTM S9086-SN-STM-010/CH-541, Ship Fuel and Fuel Systems [Ref. a], the key requirements include: Sampling Requirements Initial Sample (Before Replenishment) – A sample from the receiving tanks is tested for existing fuel quality and compatibility with incoming fuel. Barge/Tanker Sample – A sample from the fuel source (barge or tanker) is taken to verify compliance with military fuel specifications before transfer begins. During Transfer Samples – Fuel is sampled periodically from the transfer lines to detect water, sediment, or other impurities. Post-Transfer Sample (Settling Sample) – After completion, a final sample is taken from the receiving tanks to assess fuel stability and cleanliness. Testing Criteria Bottom Sediment & Water (BS&W) Testing – Ensures contamination levels remain below acceptable limits. Flashpoint Verification – Confirms fuel safety standards are met. API Gravity & Density Analysis – Ensures consistency with naval fuel requirements. Clear and Bright Test – A visual assessment to confirm absence of water or debris. Documentation and Reporting Fuel Replenishment Log – Records sampling times, test results, and corrective actions taken if contamination is detected. Fuel Quality Test Reports – Submitted to engineering personnel for review. Operational Reports – Logged in the ship’s records to ensure compliance with fuel management protocols. Proper fuel sampling and testing ensure safe, efficient operations and mission readiness.

Answer 192

1. Immediate Actions Stop Work – If a missing tag or discrepancy is discovered, all related operations must halt immediately. Notify the Authorizing Officer – The responsible officer must be informed to assess the situation. Investigate the Issue – Determine whether the tag was improperly removed, misplaced, or incorrectly documented. 2. Verification and Correction Cross-Check Documentation – Review the Tag-Out Log and Tag-Out Record Sheets (TORS) to verify the correct status of the affected equipment. Inspect Equipment Condition – Physically check the system to ensure it remains in a safe state. Replace or Correct Tags – If necessary, reissue the missing tag or correct discrepancies following standard tag-out procedures. 3. Reporting and Documentation Incident Report – Document the discrepancy, including the cause, corrective actions taken, and personnel involved. Audit and Review – Conduct an audit to ensure compliance and prevent future occurrences. Training and Prevention Measures – If the issue resulted from procedural errors, additional training may be required for personnel. Proper handling of tag-out discrepancies ensures safety, accountability, and operational integrity.

Answer 193

Audit Procedures Review of Active Tag-Outs – Verify that all active tags are properly logged, placed, and documented. Inspection of Tag Placement – Ensure tags are correctly affixed to equipment and match the corresponding Tag-Out Record Sheets (TORS). Verification of Cleared Tag-Outs – Confirm that removed tags were properly authorized and documented. Cross-Check with Operational Logs – Compare tag-out records with engineering logs to ensure consistency. Personnel Compliance Check – Assess whether watchstanders and maintenance personnel are following tag-out procedures correctly. Corrective Actions – Identify discrepancies and implement corrective measures to prevent future errors. Audit Periodicity Weekly Audits – Conducted by designated personnel to ensure ongoing compliance. Quarterly Audits – A more detailed review performed by supervisory personnel to assess overall program effectiveness. Annual Audits – Comprehensive evaluations conducted to verify adherence to naval safety regulations and identify areas for improvement.

Answer 194

Out-of-Commission (OOC) and Out-of-Calibration (CAL) stickers are used aboard naval vessels to ensure safety, accuracy, and proper equipment functionality. According to the Tag-Out User’s Manual (TUM) NAVSEA S0400-AD-URM-010/TUM here, their purpose and uses include: Purpose Preventing Use of Faulty Equipment – Clearly marks instruments that are inoperative or unsafe for operation. Ensuring Accurate Readings – Identifies equipment that requires recalibration to maintain precision. Enhancing Safety – Helps personnel avoid using malfunctioning or unreliable instruments. Standardizing Maintenance Procedures – Ensures proper documentation and tracking of equipment status. Uses Out-of-Commission (OOC) Stickers – Applied to equipment that is non-functional or damaged beyond immediate repair. Out-of-Calibration (CAL) Stickers – Used on instruments that require recalibration but are still operational within limited parameters. Tracking and Documentation – Maintains records of affected equipment in logs and maintenance reports. Compliance with Naval Standards – Ensures adherence to safety regulations and operational protocols. These stickers play a vital role in preventing errors, maintaining efficiency, and ensuring mission readiness

Answer 195

1. Pre-Dive Tag-Out Preparation Identify all sea-connected systems that could affect divers, such as cooling water intakes, discharge lines, and propulsion systems. Coordinate with engineering and diving personnel to determine necessary tag-outs. Verify that double barrier protection is applied to critical systems. 2. Tag Placement and Verification Place Danger Tags on all valves, switches, and controls that could impact diver safety. Ensure Tag-Out Record Sheets (TORS) are properly filled out and logged. Conduct a verification check with the Officer of the Deck (OOD) and engineering personnel. 3. Communication and Monitoring Establish continuous communication between the dive team and shipboard personnel. Maintain a watchstander to monitor tag-out compliance throughout the dive operation. Confirm that no unauthorized personnel alter or remove tags during the dive. 4. Post-Dive Tag-Out Removal Once the dive is complete, verify that all divers are safely out of the water. Conduct a final system check before removing tags. Log the cleared tag-outs in the Tag-Out Log and ensure proper documentation. This procedure ensures diver safety, prevents accidental system activation, and maintains operational control.

Answer 196

Key Requirements Proper Valve Isolation – The designated single valve must be capable of fully isolating the system to prevent unintended activation. Tag-Out Documentation – The valve must be properly tagged and logged in the Tag-Out Record Sheets (TORS) to ensure compliance. Periodic Inspection – Regular checks must be conducted to verify the valve’s integrity and operational status. Personnel Awareness – Watchstanders and maintenance personnel must be informed of the tag-out to prevent accidental operation. System-Specific Considerations – Certain systems may require additional precautions, such as pressure relief mechanisms or secondary monitoring. Applicable Systems (114.8) Low-Pressure Steam Systems – Requires single valve isolation to prevent accidental steam release. Non-Toxic Gas Systems – Ensures controlled operation while maintaining accessibility. Non-Sea-Connected Systems – Prevents unintended activation without requiring double barrier protection. Routine Maintenance Equipment – Allows safe servicing while maintaining system functionality. Single valve protection is used when double barrier protection is not required, ensuring safe and efficient operations while maintaining accessibility.

Answer 197

1. Identification of Electrical Hazards Determine which electrical systems require isolation. Identify potential risks such as shock hazards, arc flash dangers, and unintended equipment operation. 2. Tag Placement and Documentation Apply Danger Tags to electrical switches, circuit breakers, and control panels that must remain deactivated. Record the tag-out in the Tag-Out Log and complete the Tag-Out Record Sheet (TORS). Ensure tags are clearly visible and securely attached. 3. Verification and Authorization Obtain approval from the Authorizing Officer before placing or removing tags. Conduct a double-check verification to confirm proper isolation. Ensure compliance with electrical safety protocols. 4. Communication and Monitoring Notify all affected personnel about the tag-out status. Maintain continuous monitoring to prevent unauthorized removal or system activation. Coordinate with engineering and electrical technicians for system integrity checks. 5. Removal and Restoration Procedures Verify that all maintenance or repairs are complete before removing tags. Conduct a final inspection to ensure safe system restoration. Log the cleared tag-out in the Tag-Out Log and update documentation. Proper electrical tag-out procedures ensure safety, compliance, and operational readiness aboard naval vessels.

Answer 198

1. Identification of Critical DC Systems Determine which direct current (DC) systems require isolation, such as power distribution panels, battery banks, and emergency backup systems. Identify potential hazards, including electrical shock risks, arc flash dangers, and unintended equipment activation. 2. Tag Placement and Documentation Apply Danger Tags to all affected DC components, including switches, circuit breakers, and control panels. Record the tag-out in the Tag-Out Log and complete the Tag-Out Record Sheet (TORS). Ensure tags are clearly visible and securely attached. 3. Verification and Authorization Obtain approval from the Authorizing Officer before placing or removing tags. Conduct a double-check verification to confirm proper isolation. Ensure compliance with electrical safety protocols. 4. Communication and Monitoring Notify all affected personnel about the tag-out status. Maintain continuous monitoring to prevent unauthorized removal or system activation. Coordinate with engineering and electrical technicians for system integrity checks. 5. Removal and Restoration Procedures Verify that all maintenance or repairs are complete before removing tags. Conduct a final inspection to ensure safe system restoration. Log the cleared tag-out in the Tag-Out Log and update documentation. Proper DC equipment tag-out procedures ensure safety, compliance, and operational readiness aboard naval vessels.

Answer 199

The Ship's Instrument Log is a crucial record that tracks the status, calibration, and operational readiness of various instruments aboard naval vessels. According to the Tag-Out User’s Manual (TUM) NAVSEA S0400-AD-URM-010/TUM here, some key items listed in the log include: Instrument Identification – Each instrument is logged with its unique identifier, location, and function. Calibration Status – Records the last calibration date and any required adjustments to maintain accuracy. Out-of-Commission (OOC) and Out-of-Calibration (CAL) Status – Indicates whether an instrument is temporarily non-functional or requires recalibration. Maintenance History – Documents past repairs, inspections, and servicing to ensure operational reliability. Tag-Out Records – Lists any instruments that have been tagged out for safety or maintenance reasons. Operational Limits – Specifies acceptable performance ranges and any restrictions on instrument use. These log entries help maintain safety, accuracy, and compliance with naval operational standards.

Answer 200

* When setting single valve protection in accordance with Tag-out User’s Manual (TUM). * Tagging out installed DC systems, alarms, or safety devices, or anything that would result in downgrading weapons posture. * GTM/GTG startup, if not already approved in night orders. Not required during a casualty or tactically necessary. * Pumping of bilges. * Rolling or stopping shafts. * Opening reduction gears. * Securing or opening firemain.

Answer 201

* Entry into Immediately Dangerous To Life or Health (IDLH) spaces such as tanks, voids, and spaces contaminated by toxic gas. * Working on energized equipment. * Personnel going aloft or over the side while underway, going topside after dark when underway not to include throwing trash. * Bypassing equipment interlocks or safety devices, placing alarms in cutout. * Removing any lifeline. * Exceeding heat stress stay times as listed in OPNAVINST 5100.19 Series.

Answer 202

* Deviating from Standing Orders, Night Orders, or orders from Commanders exercising OPCON/TACON of COLE or any approved procedure such as those contained in EOSS, CSOSS, PMS, or other Fleet Guidance * Discharging waste, fluid, trash, garbage or plastics over the side not in accordance with International Convention for the Prevention of Pollution from Ships (MARPOL). * Securing from General Quarters. * Changing approved watchbills. * Stationing of special evolution details (e.g., low visibility, Condition II AS). * Turnover of OOD/TAO/CONN when I am present. * Setting/securing RMD unless conducting PPRs and conducting any maintenance while at RMD. * Ordering tasking that will violate protected sleep hours of personnel.

Answer 203

ICAS logs will be reviewed daily, prior to 1200. Paper equipment operating logs will be turned in with the daily log package and returned to the operating log administrator for filing. Logs may be destroyed six months after the date of the last entry

Answer 204

(1) LPAC/LPAD Operating Logs: Hourly (2) RO Logs: Hourly (3) Sounding and Security Log: Hourly (4) Dry Bulb Temperature Log: Hourly Underway, every 4 hours in port (when spaces are unmanned). (5) Gas Turbine Generator Set Log: Hourly (6) 200 Ton Air Conditioning Plant Log: Hourly (7) Refrigeration Plant Log: Two hour intervals

Answer 205

1. Integrated Performance Assessment Reports, which are used as part of the Total Ships Readiness Assessment (TSRA) process. These reports help evaluate and document the condition and performance of ship systems—like hull, mechanical, electrical, and combat systems—to ensure operational readiness. 2. Typically, these assessments are conducted: Annually or semi-annually as part of scheduled maintenance availabilities. Before and after deployments to evaluate readiness and identify any degradation. During major overhauls or modernization periods, when systems are being upgraded or replaced. The goal is to maintain a continuous picture of a ship’s material condition and ensure it's mission-ready. If you're looking at a specific ship type or command, I can help dig into their assessment schedule more precisely.

EOOW Flashcards

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