Book 4 Flashcards
if an area contains hazardous concentrations of flammable gases or vapours under normal operating conditions, electrical equipment must be designed for use in the area. This is designated as:
Select one:
a.
Class 1
b.
Class 2
c.
Class 3
d.
Class 4
Class 1
Daily fire suppression system checks should include:
Select one:
a.
Visual inspection of fire hoses for readiness
b.
Hydrostatic testing of sprinkler lines
c.
Fire pump run test
d.
Water supply valves to all systems are open and locked open if necessary
The correct answer is: Visual inspection of fire hoses for readiness
Which of the following situations will support combustion?
a.
A closed pressure vessel that contains nitrogen gas and liquid hydrocarbon above their ignition temperature
b.
A mixture of air and methane in a flare header
c.
A closed pressure vessel that contains propane at a temperature above its flash point
d.
An open container of hydrocarbon at a temperature below its flashpoint
A mixture of air and methane in a flare header
A major disadvantage of a floor standing pump extinguisher over a backpack extinguisher is:
Select one:
a.
The floor unit has far less capacity
b.
The backpack unit has twice the range
c.
Pumping must stop to relocate the floor standing pump
d.
The floor unit pump is only single acting
Pumping must stop to relocate the floor standing pump
An area in which easily ignited material fibers are handled or manufactured has an Electrical Designation of:
Select one:
a.
Class 1
b.
Class 2
c.
Class 3
d.
Class 4
Class 3
The four basic components of WHMIS are:
Select one:
a.
Employee training, Governing legislation, Confidentiality of information, Material Safety Data Sheets
b.
Governing legislation, Labelling, Material safety data sheets, Employee training
c.
Governing legislation, Hazard identification and product classification, Labelling, Material Safety Data Sheets
d.
Employee training, Labelling, Material Safety Data Sheets, Hazard identification and product classification
Employee training, Labelling, Material Safety Data Sheets, Hazard identification and product classification
Fire pump testing should be completed:
Select one:
a.
Annually
b.
Monthly
c.
Weekly
d.
Annually, Monthly and weekly
Annually, Monthly and weekly
For annual performance testing, fire pumps should be compared to manufacturers’ specification while running under ______ flow conditions and _________ rated capacity.
a.
No, 100%
b.
Process, 50%
c.
No, 150%
d.
Full, 150%
No, 150%
To prevent the formation of explosive mixtures, oxygen and acetylene cylinders should be:
Select one:
a.
Equipped with different thread connectors
b.
Stored outside
c.
Stored in separate areas
d.
Regularly hydro-tested
Stored in separate areas
The type of fire extinguisher usually used on a live electrical fire is a/an ________ extinguisher:
Select one:
a.
Pressurized water
b.
Dry chemical
c.
AFFF
d.
Carbon dioxide
Carbon dioxide
During an injury related investigation by an OH&S officer, work being done at the work site may be suspended:
Select one:
a.
Indefinitely
b.
Until the officer arrives at the scene
c.
For a maximum of 48 hours
d.
Until any serious safety hazards are corrected
Until any serious safety hazards are corrected
It is the employers responsibility to ____________ personal protective equipment .
Select one:
a.
Supply, ensure usage, and maintain
b.
Issue, care for, and maintain
c.
Only supply
d.
Supply and ensure usage of
Supply and ensure usage of
The valve cap on a gas cylinder:
Select one:
a.
Will prevent gas escaping if the cylinder valve leaks.
b.
Must be in place when the tare weight is being measured.
c.
Will prevent the cylinder valve from breaking off if the cylinder falls over.
d.
Protects the cylinder valve from damage.
Protects the cylinder valve from damage.
What is the best way to prevent a fire?
a.
Eliminate static electricity
b.
Provide employees with fire fighter training
c.
Install fire proofing wherever possible
d.
Prevent the formation of a combustible fuel and air mixture
Prevent the formation of a combustible fuel and air mixture
A reducing agent or fuel could be:
Select one:
a.
Carbon monoxide
b.
A heavy metal oxide
c.
Hydrogen peroxide
d.
Concentrated Sulphuric acid
Carbon monoxide
The “flash point” of a flammable liquid is the temperature at which:
Select one:
a.
It may also be called the “flame point”
b.
The liquid will produce enough vapour to form a flammable mixture when mixed with air
c.
Spontaneous combustion will occur
d.
The liquid will burn
The liquid will produce enough vapour to form a flammable mixture when mixed with air
A Class “A” fire would involve:
Select one:
a.
Gasoline or oil
b.
Paint or grease
c.
Electrical equipment
d.
Wood or coal
Wood or coal
A safe work permit for cold work is intended for work:
Select one:
a.
Only in freezers and cold spaces
b.
For work that may cause a fire, but unlikely
c.
Only for outside work in winter months
d.
For work that will usually not cause a fire
For work that will usually not cause a fire
Which of the following applies to hearing protection?
a.
Is required when in noisy areas of power plants
b.
Refers to earmuffs only, not ear plugs
c.
Is legislated below 80 decibels
d.
Is required if a worker already has detectable hearing loss
Is required when in noisy areas of power plants
If hydrocarbon vapour is present in air, when will it support combustion?
a.
At any concentration
b.
When it is between the upper and lower explosive limits
c.
When it is exposed to a spark
d.
When it is below the lower explosive limit
When it is between the upper and lower explosive limits
How can Class B fires be prevented?
a.
Using proper kitchen safety when cooking with oils
b.
Storing wood and paper properly
c.
Performing regular preventive maintenance on electrical equipment
d.
Regularly inspecting and tightening the packing on leaking valve packing
Regularly inspecting and tightening the packing on leaking valve packing
The most common and easiest to maintain sprinkler system is the:
Select one:
A.
Preaction
B.
Dry Pipe
C.
Wet Pipe
D.
Deluge
Wet Pipe
The type of sprinkler system that requires a supplemental detection system (such as a smoke detector) to operate is the:
Select one:
a.
Deluge System
b.
Preaction
c.
Wet Pipe
d.
Dry Pipe
Preaction
Top guard rings are used on some gas cylinders instead of:
Select one:
a.
Vapour valves
b.
Pressure relief valves
c.
Valve caps
d.
Regulators
Valve caps
The receiver of a safety work permit:
Select one:
a.
Does not need to verify the information the Safe Work Permit issuer put on the permit.
b.
Relies solely on the issuer to create and maintain a safe work site
c.
Should work with the Safe Work Permit issuer to ensure a safe work site
d.
Does not need to hand in the safe work permit at the end of the shift
Should work with the Safe Work Permit issuer to ensure a safe work site
What is the main cost an employer must pay in the event of a workplace injury?
a.
Training costs
b.
Insurance costs
c.
Investigation costs
d.
Incident reporting
Insurance costs
By definition in this chapter, a “confined space” is any enclosed or partially enclosed space having:
Select one:
a.
Harmful gases, vapours, mists, or dusts
b.
Mechanical hazards and restricted ingress
c.
Limited room for tools and equipment
d.
Restricted access and egress and may become a life-threatening environment
Restricted access and egress and may become a life-threatening environment.
What type of fire should be put out with water?
Select one:
a.
Class “A”
b.
Class “B”
c.
Class “C”
d.
Class “A”, “B”, and “C”
Class “A”
Which of the following is a Class “B” fire?
Select one:
a.
A fire in a coal bunker
b.
A fire in a wood pile
c.
A turbine lube-oil fire
d.
A fire in an electrical panel
A turbine lube-oil fire
Asbestos is an old insulation material still found in many plants. Asbestos fibres cause health problems because:
Select one:
a.
The dust causes flu like diseases
b.
The fibres cause scarring for no reason
c.
The fibres do not cause the damage, but the dust sitting in the lungs causes a type of pneumonia.
d.
The fibres lodge in a workers lungs and stay because of hook like barbs on the fibre
The fibres lodge in a workers lungs and stay because of hook like barbs on the fibre
In order for hydrocarbons to burn, the:
Select one:
a.
Mixture must be lean
b.
Air/fuel mixture should be above the upper flammable limit
c.
Fuel/air mixture must be rich
d.
Fuel must be a vapour
Fuel must be a vapour
What are the four basic types of sprinkler systems?
a.
Automatic, semi-automatic, manual, dry pipe
b.
Deluge, pre-action, wet pipe, dry pipe
c.
Deluge, pre-action, automatic, combined
d.
Class I, Class II, Class III, Class IV
Deluge, pre-action, wet pipe, dry pipe
Aqueous film forming foam agents extinguish a fire by:
Select one:
a.
Breaking the chain reaction
b.
Cooling and smothering
c.
Sealing vapours, and cooling
d.
Sealing vapours, cooling, and removing oxygen
e.
Combining oxygen with the burning material
Feedback
Sealing vapours, cooling, and removing oxygen
Who is affected by the financial impacts caused by workplace injuries?
a.
Employees and employers
b.
Employers only
c.
Insurance companies only
d.
Employees only
Employees and employers
A Class “B” fire can be extinguished by:
Select one:
a.
Lowering the temperature of the burning wood or paper.
b.
Creating a chain reaction between the molecules of the burning material.
c.
Smothering the burning liquid.
d.
Lowering the temperature of the burning liquid.
Smothering the burning liquid.
Which is the workers responsibility?
Select one:
a.
Co-operating with others on workplace safety and health
b.
Clearly stated goals and objectives of the health and safety program
c.
Clearly defined roles and responsibilities for management, workers, contractors, and visitors at the plant site
d.
Issuing proper safety equipment to all workers
Co-operating with others on workplace safety and health
How are oxygen and acetylene cylinders stored?
a.
2 m apart
b.
6 m apart
c.
Together, if properly secured
d.
Together, in warehouses only
6 m apart
Fire sprinkler hydrostatic testing should be done _________:
Select one:
a.
not required on most sprinkler systems
b.
annually
c.
every 3-5 years
d.
monthly
every 3-5 years
Overheating of electrical equipment is:
Select one:
a.
Is one of the conditions that usually cause electrical fires in buildings
b.
Usually the result of inadequate wiring
c.
Often due to over sized fuses being installed
d.
The result of blocked cooling fin passages
Is one of the conditions that usually cause electrical fires in buildings
When isolating an electric motor driven pump, you should first:
Select one:
a.
Close the pump inlet valve
b.
Open the motor breaker
c.
Ensure the pump is drained
d.
Close the pump discharge valve
Open the motor breaker
