Working at Heights Mock Exam 4

All 40 questions in this test

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

1. An anchor is directly overhead rather than off to the side. What risk does this reduce?

   1. The need for any rescue plan
   2. The weight of the lanyard
   3. The need to inspect the harness first
   4. The pendulum (swing-fall) effect

2. Why should a lanyard be kept as short as practical?

   1. To make it lighter to carry around the site
   2. So it fits in a smaller storage bag
   3. So more workers can share it at once
   4. To reduce how far the worker can fall

3. Which hazard triggers Ontario's construction fall protection rules regardless of height?

   1. Walking on a level gravel path at grade
   2. Falling into water or another liquid
   3. Standing on a solid concrete floor
   4. Climbing two stairs to a trailer

4. Before using a step-ladder, what must be done?

   1. Remove the spreaders for space
   2. Open the legs fully and lock the spreaders
   3. Lean it closed against the nearest wall
   4. Stand it on a wooden pallet for extra height

5. Which defect means a harness or lanyard must not be used?

   1. A manufacturer's label that is still easy to read
   2. Webbing that is clean and free of any stains
   3. Cut, frayed or burned webbing, or damaged stitching
   4. Buckles that move freely and close properly every time

6. 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

7. Which material may replace the intermediate rail of a guardrail?

   1. A painted line on the floor near the edge
   2. A row of traffic cones along the edge
   3. A single strand of plastic flagging tape
   4. Material that can withstand a 450 N point load

8. Whom must the employer appoint as a supervisor on a project with work at heights?

   1. The newest worker
   2. Any volunteer
   3. A competent person
   4. A relative of the owner

9. How must a horizontal lifeline system be installed and maintained?

   1. According to the engineer's design
   2. According to a co-worker's memory
   3. However the crew finds fastest
   4. Only as the supplier's ad suggests

10. Who has roles and responsibilities in a fall rescue plan?

    1. Employers, supervisors and workers
    2. Only the injured worker
    3. Only the local fire department
    4. Only the equipment supplier

11. Which condition must a lanyard be kept away from?

    1. Its original storage bag
    2. Clean, dry and shaded storage areas
    3. Flame, extreme heat or corrosive materials
    4. The manufacturer's label

12. 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

13. When using an automatic rope grab, what lanyard length does WorkSafeBC recommend?

    1. Any length at all
    2. 6 metres (20 ft)
    3. 0.6 metres (2 ft)
    4. 3 metres (10 ft)

14. What is the role of a safe work plan for work at heights?

    1. Identify fall hazards and share them with workers and supervisors
    2. Record the names of the workers who refused to climb a ladder
    3. Set the hourly wage for each worker who works on a roof
    4. List the brands of harness the company prefers to buy

15. When calculating clearance below, why must the shock absorber be included?

    1. It shortens the lanyard by pulling the worker back upward
    2. It can extend up to about 1.2 m as it absorbs the fall
    3. It weighs enough to change the worker's fall path
    4. It has no effect on how far the worker drops

16. Which three conditions does working at heights training ask learners to define and explain?

    1. Bottoming out, the pendulum effect and harness suspension
    2. Ladder slip, scaffold tip-over and crane tip-over on site
    3. Noise, dust and vibration on a roof
    4. Wind chill, heat stress and frostbite at heights

17. How should a worker get tools up to a work area at height?

    1. Carry them in one hand while climbing up
    2. Use a hoist, hand line, bucket or tool belt
    3. Hold them in the mouth while climbing
    4. Throw them up to a co-worker who is waiting above

18. Where is the general legal framework for health and safety taught to every Ontario worker?

    1. Nowhere; workers must read the law alone
    2. Only in university engineering programs
    3. In mandatory basic awareness training
    4. Only in the JHSC certification course

19. What is the difference between an automatic and a manual rope grab?

    1. An automatic one is for ladders; a manual one is for horizontal lines
    2. An automatic one moves with you and locks; a manual one stays put
    3. An automatic one needs batteries; a manual one runs on air pressure
    4. There is no difference; the names are interchangeable

20. A worker arrives at a new site and is told to use an anchor they have not seen before. What should they do?

    1. Test it by jumping on it while tied off
    2. Ask for information about the anchor before using it
    3. Choose a nearby pipe instead without asking
    4. Use it without question, since all anchors are the same

21. 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

22. Who needs to understand emergency procedures for falls on a project?

    1. Only the project owner
    2. Only the first aid attendant on site
    3. Employers, supervisors and workers
    4. Only the safety inspector

23. Which grades of manufactured portable ladder may be used on an Ontario construction project?

    1. CSA Grade 1, 1A or 1AA
    2. Any ladder with a sticker
    3. Grade 2 farm ladders only
    4. CSA Grade 3 household only

24. May a safety belt be used to arrest a fall?

    1. No; belts are for restraint only, as a fall into one can injure badly
    2. Yes, if it is tightened very firmly around the hips before work
    3. Yes, as long as it has a D-ring on the back of the belt
    4. Yes, for falls of less than 3 metres in any situation

25. A worker is told to work at an unprotected roof edge with no fall protection. What may the worker do under the OHSA?

    1. Refuse the work and report it to the supervisor or employer
    2. Refuse and go home for the rest of the week without telling anyone
    3. Do the work quickly, since refusals are not allowed on construction
    4. Call a news reporter before telling anyone at the workplace

26. Where a worker may drown, where must the rescue equipment be kept?

    1. In the supplier's warehouse until needed
    2. Locked in the head office across town
    3. At the nearest public marina only
    4. In a suitable location on or near the project

27. WorkSafeBC recommends limiting free fall in a fall arrest system to no more than how far?

    1. 0.1 metres
    2. 1.2 metres
    3. 3 metres
    4. 6 metres

28. What are the two modules of an approved working at heights program?

    1. First Aid and Rescue
    2. Basic Theory and Practical
    3. Roofing and Steel
    4. Ladders and Scaffolds sections

29. Besides approved working at heights training, what does O. Reg. 213/91 require before a worker uses a fall protection system?

    1. A signed waiver releasing the employer from any responsibility
    2. A second approved program from a different provider
    3. A doctor's note confirming the worker is not afraid of heights at all
    4. Training in its use, with oral and written instructions

30. A fixed access ladder rises 7 m above the floor. What is required?

    1. A second ladder installed right beside the first
    2. A sign telling workers to climb slowly and carefully at all times
    3. A safety cage starting no more than 2.2 m above the floor
    4. Nothing extra, since fixed ladders are always safe

31. 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

32. Which of these is a fall hazard under s. 26 even if the drop is short?

    1. An opening in a work surface
    2. A level parking lot
    3. A wide, flat sidewalk
    4. A painted line on a concrete floor

33. A worker is 1 metre above operating machinery. Do the fall protection rules apply?

    1. No; the rules only start at 3 metres in every single case
    2. Yes; a fall into operating machinery is covered at any height
    3. Only if the machinery is moving faster than walking speed
    4. No; machinery hazards are covered only by Reg. 851

34. How long does it take to fall about 5 metres?

    1. About thirty seconds
    2. About ten seconds
    3. About one minute
    4. About one second

35. Who must inspect a travel restraint, fall restricting or fall arrest system, and when?

    1. A competent worker, before each use
    2. Nobody, if it is brand new
    3. An engineer, once a month
    4. The supplier, once a year at renewal

36. Why must employers add to an approved working at heights program?

    1. To cover their own workplace procedures and equipment
    2. Because approved programs are optional for employers
    3. To shorten the program to under an hour of training
    4. Because the ministry no longer approves any programs

37. Which is a limitation of bump lines and barriers set back from an edge?

    1. They replace the need for any training or supervision
    2. They warn or limit access but cannot stop a falling worker
    3. They are stronger than guardrails in every situation
    4. They prevent all falls even at the very edge itself

38. Why must workers be able to calculate total fall distance and clearance?

    1. So a fall is stopped before they hit the ground or an object
    2. To decide how fast they can work while at heights
    3. To estimate how long the shift will take to finish
    4. To work out how much rope to buy for the next project on the list

39. 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

40. What is a lifeline usually used with in a fall arrest system?

    1. A guardrail toe board
    2. A ladder leaning against the nearest wall
    3. A fall arrest device such as a rope grab
    4. A safety belt for fall arrest