Working at Heights Practice Test 4

All 30 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

1. On an Ontario construction project, which workers must have approved working at heights training?

   1. Workers who may use fall protection such as a harness
   2. Only workers who are taller than average and climb ladders daily
   3. Every worker on the site, including office staff in the site trailer
   4. Only supervisors, who then explain the rules to their crews

2. A worker finds a frayed lanyard in the gang box. What is the worker's duty?

   1. Cut off the frayed part and keep using it
   2. Use it carefully until the end of the day only
   3. Report the defect to the supervisor or employer
   4. Throw it away and say nothing to anyone

3. What does the 4-to-1 rule for ladder set-up mean?

   1. Use 4 rungs for every 1 metre of the ladder's height
   2. For every 4 units up, the base is 1 unit out from the wall
   3. Inspect the ladder every 4 days, 1 time per shift
   4. For every 4 workers on site, only 1 may climb at any one time

4. To what must a fall arrest system be attached?

   1. A loose pile of materials
   2. Another worker's harness
   3. An independent fixed support
   4. The worker's own tool belt or pouch

5. Who must be told the rescue procedures when workers may drown?

   1. Only the site owner
   2. All workers on the project
   3. Only the boat operator on duty
   4. Only visitors to the site

6. Must a fall arrest system's fixed support be independent?

   1. Yes; it must be an independent fixed support
   2. Only on the night shift
   3. No; any shared point is perfectly fine
   4. Only for the first worker on it

7. A travel restraint system is not practicable on a sloped roof edge. Which method must be considered next?

   1. A safety net
   2. A warning sign at the edge
   3. A safety belt only
   4. A fall restricting system

8. Why must a worker hanging in a harness after a fall be rescued promptly?

   1. Hanging in a harness can affect the body, and self-rescue may fail
   2. Because the lanyard must be returned to the supplier the same day
   3. Because the shock absorber will keep stretching until the worker lands
   4. Because the harness will automatically release the worker after a few minutes

9. Which use of a lifeline is not allowed?

   1. Running it over a sharp edge where it can be cut
   2. Storing it away from sunlight
   3. Connecting it to a fixed support
   4. Inspecting it carefully before each use

10. Who may inspect a horizontal lifeline system before each use?

    1. An engineer or a competent worker designated by a supervisor
    2. No inspection is needed if it was engineered
    3. The owner of the building, whoever that may be
    4. Any worker who happens to be standing nearby at the time

11. What must happen for each demonstration outcome in the Practical module, such as donning a harness?

    1. It is graded only on a written quiz
    2. It must be performed satisfactorily and documented
    3. It may be skipped if the class runs short on time
    4. It is done only by the instructor

12. After a worker falls and the fall arrest system stops the fall, what happens to the system?

    1. It can be reused right away if it looks fine to the worker
    2. It is stored for a week and then used again normally
    3. It must be painted a different colour before reuse
    4. It is removed from service until the manufacturer certifies it

13. What lateral point load must the top rail of a guardrail resist?

    1. 675 newtons
    2. 100 newtons
    3. 225 newtons
    4. 2,000 newtons

14. What is one purpose of working at heights training according to the program standard?

    1. To license workers to drive elevating work platforms on roads
    2. To reduce falls from heights and the injuries and deaths they cause
    3. To replace the employer's duty to provide fall protection
    4. To qualify workers to design guardrails and anchors for engineers

15. When have you climbed too high on a stepladder?

    1. When your feet are on the bottom step
    2. When the ladder has five or more steps in total
    3. When you can see the whole ceiling clearly
    4. When your knees are above the top of the ladder

16. Why does Ontario limit the peak fall arrest force on a worker to 8 kN?

    1. To keep the anchor from moving at all in a fall
    2. To make the lanyard last longer
    3. To allow longer free falls
    4. To limit the force on the body when the fall is stopped

17. Which consequence of falls from heights does working at heights training ask learners to consider?

    1. The impact on families, co-workers, morale and reputation
    2. Only the time lost while the injured worker fills in paperwork
    3. Only the cost of replacing the damaged tools that were dropped
    4. Only the fines paid by the worker who fell from the ladder

18. Using a scaffold with guardrails instead of a ladder for a long overhead job is an example of what?

    1. Ignoring the hierarchy of controls
    2. Using PPE as the very first line of defence
    3. Choosing a higher-level control from the hierarchy
    4. An administrative rule about ladders

19. Why should synthetic lifelines be inspected carefully before each use?

    1. They change colour on hot and sunny days
    2. Sunlight and wear can weaken them over time
    3. They are made of paper inside
    4. They shrink in cold weather only

20. What static force must a temporary support for a fall restricting system withstand, unless used to the maker's written instructions?

    1. At least 30 kilonewtons
    2. At least 1 kilonewton
    3. At least 6 kilonewtons
    4. At least 2 kilonewtons

21. When must the rescue boat be power-driven?

    1. Only after sunset
    2. Only on weekends and statutory holidays
    3. Never; oars are enough
    4. If the water is likely to be rough or swift

22. What mark must a learner achieve on the working at heights written test?

    1. At least 90 per cent
    2. At least 50 per cent
    3. At least 60 per cent
    4. At least 75 per cent

23. Where is the fall arrest D-ring located on a full body harness?

    1. On the leg strap, near the knee
    2. On the left hip, near the pocket
    3. On the back, between the shoulder blades
    4. On the front of the waist belt, by the buckle

24. What is the difference between fall restraint and fall arrest?

    1. Restraint prevents a fall; arrest stops a fall that has started
    2. Restraint is for ladders only; arrest is for roofs only
    3. Restraint stops a fall halfway down; arrest stops it at the ground
    4. There is no difference; both terms mean the same thing

25. On an Ontario construction project, fall protection rules apply when a worker may fall more than how far?

    1. 6 metres
    2. 1 metre
    3. 10 metres
    4. 3 metres

26. By about how much can a personal shock absorber lengthen a lanyard during a fall?

    1. About 1 centimetre
    2. Up to about 1.2 metres
    3. About 5 metres
    4. It never changes length

27. What does a travel restraint system do?

    1. Catches a falling worker in a net below the edge
    2. Lowers a worker slowly to the ground after a fall
    3. Keeps a worker from reaching a place where they could fall
    4. Stops a worker after they have already fallen part of the way down

28. Where must the intermediate rail be located?

    1. Midway between the top rail and the toe board
    2. Right on top of the toe board at floor level only
    3. Anywhere the installer finds convenient
    4. Above the top rail as an extra hand grip

29. What should workers know before installing, relocating or removing guardrails?

    1. Nothing special; guardrail work is always risk-free at any height
    2. The precautions needed, since they may be exposed while doing it
    3. Only the brand name of the guardrail system being used
    4. Only how to paint the rails a highly visible colour

30. A self-retracting lifeline's fall indicator shows it has arrested a fall. What should you do?

    1. Use it, since retractable lifelines reset themselves after a fall
    2. Use it only for the rest of the shift, then report it
    3. Reset the indicator by hand and continue using it right away
    4. Do not use it until the manufacturer inspects and approves it