Firefighting

Question 1

How does each system extinguish the fire? Co2, High fog, Foam flooding, Novec.

Answer 1

CO2 system works by displacing oxygen from the fire area, thereby reducing the oxygen concentration below the level necessary to sustain combustion.

High-pressure water mist systems generate a fine mist of water droplets that absorb heat and cool the fire, displacing oxygen and suppressing combustion.

Foam flooding systems work by covering the fuel surface with a blanket of foam, which suppresses the release of flammable vapors and prevents reignition.

Novec 1230 systems extinguish fires by rapidly cooling the fire area and interrupting the combustion process

Question 2

How do you prevent fires in the engine room?

Answer 2

Good housekeeping,
Clean bilges,
Repair faults at the earliest opportunity,
Test quick closing valves and shutdowns.
Double sheathed fuel lines (SOLAS,)
Correct fuel flash point.

Question 3

What Certificates are involved with fire fighting systems?

Answer 3

• Type approval certificate
• International Safety Equipment Certificate
• International Shore Connection Certificate
• Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk

Question 4

What safety considerations are with fixed fire fighting equipment?

Answer 4

• Regular inspection, testing and maintenance
• Regular training and familiaization
• Correct shut down procedures of other equipment
• Any limitations in the system, CO2 one shot
• Post fire inspections

Question 5

What is on a BA suit?

Answer 5

• Cylinder
• Flame proof clothing
• Pressure reducer
• Full face mask and hood
• Regulator and demand valve
• Pressure gauge
• Whistle (Low Air)
• Communication device
• Torch

Question 6

What fire fighting equipment is in the tender bay and fire alarm monitoring system?

Answer 6

• Extinguisher
• Hoses and nozzles
• Fixed fire fighting
• Smoke detector/ heat detector
• Manual call points
• Audible and Visual Alarm

Question 7

Petrol garage safety and fire fighting means?

Answer 7

• Small quantities in plastic containers that are stored in a cage that is jet-able.
• Extrinsically safe switches, sensors, fans, lighting
• Fixed firefighting
• Ventilation
• No smoking signs

Question 8

How do you know what fire suppression system is installed onboard without even going to the ER?

Answer 8

Check the fire plan at the dock or on entry, check ceiling areas for nozzles and spray heads etc.

Question 9

List types of fire suppression systems found on ships?

Answer 9

• Co2,
• High fog,
• Foam flooding,
• Novec

Question 10

Explain how CO2 works?

Answer 10

CO2 system works by displacing oxygen from the fire area, thereby reducing the oxygen concentration below the level necessary to sustain combustion.

Question 11

What is the difference between Hi Fog and CO2?

Answer 11

CO2 system works by displacing oxygen from the fire area, thereby reducing the oxygen concentration below the level necessary to sustain combustion.

Hi-fog systems generate a fine mist of water droplets that absorb heat and cool the fire, displacing oxygen and suppressing combustion.

Question 12

What maintenance is done on BA compressors?

Answer 12

• Regular inspection
• Filter change
• Oil change
• Belt tension
• Condensate drainage
• Inspect and test the pressure relief valve
• Electrical tests
• Calibration tests to measure air purity, pressure and flow rates

Question 13

What is included in the rescue and resuscitation equipment?

Answer 13

• Automated External Defibrillator (AED)
• Bag, Valve, Mask (BVM)
• Pocket mask
• Oxygen delivery system
• Suction device
• Airway management device
• Cervical collar
• Splints
• First aid supplies