Heat Stress
WBGT = 0.7 NWB + 0.3 GT (indoors; no solar heat load) NWB Natural Wet Bulb Temp. GT - Globe Temperature DB - Dry Bulb Temp. WBGT = 0.7 NWB + 0.2 GT + 0.1 DB (outdoors; with solar heat load)
Mixed Exposures
C1 + C2 Cn = 1 T1 T2 Tn
Time Weighted Average
TWA = (Conc. Task A x time hrs) + (Conc. Task B x time hrs) + …(Conc. Task n x time hrs) 8 hrs
Conversion
mg/m3 = ppm x MW ppm = mg/m3 x 24.45 24.45 MW
Ventilation
Q=VA m³/sec = volume (m³) x no. of air changes/hour 3600 (seconds in an hour)
Frequency/Severity
of lost time incidents x 200,000 total hours worked # of days lost x 200,000 total hours worked
Ergonomics
RWL = LC x HM x VM x DM x AM x FM x CM
What term best describes an undesired event that results in loss? Other adjectives commonly used are an unplanned, unexpected, or unintended event.
a) Accident
What term best describes the condition or practice that has potential for accidental loss?
d) Hazard
What specific work activity helps identify equipment deficiencies, improper employee actions, effects of change to process or materials, and inadequacies in remedial actions?
b) Workplace Inspections
ISMEC is the acronym used to describe how management should control losses. What does the M represent in ISMEC?
b) Management
During the past year, ABC Company experienced several Lost Time Claims. There were 3 back muscle sprains that totalled 27 days lost, one hand infection that resulted in 68 days lost, and one fractured finger that resulted in 15 days lost. The total hours worked during that time period was calculated to be 439,729 hours. The company uses a numerical base of 200,000 in its calculations. What is the frequency rate?
c) 11.3
During the past year, ABC Company experienced several Lost Time Claims. There were 3 back muscle sprains that totalled 27 days lost, one hand infection that resulted in 68 days lost, and one fractured finger that resulted in 15 days lost. The total hours worked during that time period was calculated to be 439,729 hours. The company uses a numerical base of 200,000 in its calculations. What is the severity rate?
d) 55
The calculation of this metric is crucial for understanding the impact of workplace injuries on productivity and costs. It helps organizations identify trends and implement safety measures to reduce future incidents.
Which term below describes the number that is simply the value or values that occur most frequently in a set of numbers?
a) Mode
What is the median value in this group of numbers: 6, 12, 31, 33, 42?
d) 31
What type of analysis includes determining the activities performed, evaluation of those activities and the control of those hazards?
c) Job Task Analysis
There is growing movement away from treating safety as a separate aspect of work. There has been a move away from performing Job Safety Analysis towards a more detailed type of analysis known as _________________.
a) Risk Analysis
This system always consists of the system boundary, one or more processes, and stocks of materials within processes. Exchange between the system and its environment happens via flows that cross the system boundary. The explicit system definition helps the person to locate the available quantitative information either as stocks within certain processes or as flows. What is the name of this system?
b) Health and Safety Management System Analysis
The process of requesting pricing and supporting information from bidders usually takes a form request. What is the name of the process that focuses more on the price, which is impacted by the type of materials or services provided?
a) RFQ
What is the name of the branch of government that is responsible for administering the Explosives Act and Regulations and pursuing the advancement of explosives safety and security technology?
b) Explosives Safety and Security Branch
The Canadian Nuclear Safety and Control Act requires radiation programs that can include training for staff using, handling, storing, or near radioactive materials; exposure and contamination control; use of radiation detection instrumentation; inventory control; transporting radioactive materials and waste; and the __________________________.
c) Appointment of a radiation safety officer
These portable radioactive devices have the ability to place a source rod in a tube, which is inserted beneath the surface through a punched access hole. The radiation is then transmitted from the source to a detector on the base of the gauge. What is this method commonly called?
a) Backscatter Method
What term is used to describe safeguarding by fixed physical barriers that are mounted on or around a machine? They are most effective when designed as part of the machine but can be installed after the machine is installed.
b) Enclosures
What is the area called on a machine, where material is positioned for processing or where work is actually being performed on the material?
a) Point of Operation
