LINE A SAFE WORK PRACTICES
When using a shock absorber lanyard, what must be accounted for in the fall protection system design?
Lanyard length may increase by up to 1.2 m (4 ft.) during a fall.
Lifting should be done primarily with the:
Legs
What should you do to turn or move an object in another direction?
Lift the object then turn your feet.
When might you require a hot work permit?
When doing welding or cutting in areas with combustible materials
When must hard hats be worn?
Whenever a hazard of flying or falling objects exists
How far apart should the feet be when lifting?
Shoulder width apart
What type of footwear must be worn when working in the welding shop?
Steel toe
When lifting, the back should be:
Straight
When a fire is being extinguished, how does covering the fire with a lid or wet blanket affect the fire?
Smothering
When foam is applied to a fire, what is the result?
Smothering
What piece of fall protection equipment must be self-locking?
Snap hook
What is another name for temporary construction heaters?
Space heaters
When handling chemicals, what are rubber gloves and a face shield worn to protect against?
Spills and splashes
What is the symbol indicating that an extinguisher is suitable for Class B fires?
Square
What is the symbol that is used to indicate that an extinguisher is suitable to extinguish a Class D fire?
Star
When a gas fire is being extinguished how does shutting off the main valve affect the fire?
Starvation
What should you do if the fire is spreading rapidly?
Exit to a safe location
How far should the arms be from the body when lifting?
As close as possible
What is the first step to take when a fire is discovered?
Assist any person in immediate danger to safety.
Which of the following best describes the lowest temperature at which a volatile material will vapourise into a gas and potentially catch fire without an external ignition source?
Autoiginition temperature
When setting down an object, after having lifted it, what must be done?
Bend the knees
How are fire extinguishers classified?
By the type of fire they will extinguish
What is the fourth component that creates the fire tetrahedron?
Chemical chain reaction
What is the symbol indicating that an extinguisher is suitable for Class C fires?
Circle
What class are fires involving ordinary combustibles such as wood?
Class A
What class are fires involving gasoline and other flammable liquids?
Class B
What is the classification of an electrical fire?
Class C
Where should the weight be positioned when lifting?
Close to the body
When a wood fire is being extinguished, how does applying water affect the fire?
Cooling
What type of hearing protection can have a communication speaker installed into it?
Custom-fitted earplugs
What is the fall protection component that connects a safety belt or harness to an anchor point?
Lanyard
What piece of fall protection equipment reduces the impact on the body when a fall happens?
Deceleration device
In a Class C fire, what is the burning material?
Electrical conductors or components
What PPE must be worn when performing an operation that could create flying particles or chips?
Eye and face protection
What term best describes the combination of PPE that is used to protect workers who fall?
Fall arrest system
A safety belt could be used as a component of what type of fall protection system?
Fall restraint system
Any worker can and should use a fire extinguisher.
False
Bump hats are designed to be used in areas with low head clearance. They are used to protect against head bumps and lacerations, but can also be used to protect against falling or flying objects.
False
Cartridge respirators are commonly used when performing work in an environment contaminated with highly toxic gases.
False
If you don't know what is burning, make sure that you use an ABC fire extinguisher.
False
Leather gloves should be used for handling acids, caustics, or solvents.
False
When the hot work is completed all personnel must exit the area immediately.
False
You should stand as close to the fire as possible when using a fire extinguisher as long as you don't feel too much heat.
False
You should tuck your pant legs inside your boots when working near a torch or grinder.
False
What material characteristic affects the maximum quantities of flammable materials stored?
Flashpoint temperature
Which of the following is required for face protection when grinding?
Full face shield
What PPE are workers responsible for supplying?
Gloves, safety headgear, and safety footwear
What three components must you have to support combustion?
Heat, oxygen and fuel
Most back injuries are the result of:
Improper bending and lifting techniques
What makes loose or sloppy clothing dangerous in mechanical shops?
May get caught in machinery
When preparing to lift an object, how should you position your feet?
One slightly ahead of the other
What does the acronym PASS stand for?
Pull, Aim, Squeeze, Sweep
What precaution should be taken when removing a vehicle battery?
Remove ground wire first
When standing for long periods of time at a working position, back strain can be reduced by:
Resting one foot on a block about 20 cm (8 in.) high
Which of the following best describes the relationship between flash point and volatility?
The flash point is the lowest temperature at which a substance vaporises into a gas, which can be ignited with the introduction of an external source of fire. The lower this flash point, the more volatile a fluid is.
A lower flash point means?
The fluid is more volatile
What is the symbol indicating that an extinguisher is suitable for Class A fires?
Triangle
It is the worker's responsibility to wear proper safety equipment on the job-site.
True
Keeping the components of combustion separated will prevent a fire.
True
Never paint on or apply labels to a hard hat.
True
Oxidation is the process of oxygen uniting with another element.
True
Portable fire extinguishers contain a limited amount of extinguishing agent.
True
Rings and metal watchbands constitute a hazard on the job and can contribute to a shock or a burn.
True
When a hard hat has sustained an impact, it doesn't need to be replaced unless it has noticeable damage.
True
When wearing a respirator for lung protection, it is necessary to use the correct cartridge for the type of hazards to which you are exposed.
True
Is the autoignition temperature is higher than the flash point?
Yes