ASP Construction Exam: Ladders and scaffolds

All 14 questions in this test

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

1. When must a scaffold be tied to a building or guyed to the ground?

   1. Only when more than three workers use it at once
   2. Only when it stands beside a public sidewalk
   3. Only when it is taller than 18 m, whatever the size of its base
   4. When its height is more than 3 times the smallest dimension of its base

2. How far must a scaffold plank extend past its supports?

   1. At least 50 mm and no more than 100 mm
   2. At least 150 mm and no more than 300 mm
   3. It must not extend at all
   4. At least 300 mm and no more than 600 mm

3. A ladder is used to reach a landing. How far must it extend above the upper landing?

   1. At least 2 m
   2. At least 300 mm
   3. At least 150 mm
   4. At least 900 mm

4. An unsecured ladder is 10 m long. What extra measure does the Code require?

   1. It must be painted yellow to be easy to see on the site
   2. One or more people must hold it firmly in place
   3. It must be spliced end to end to a shorter ladder to make it stronger
   4. Only one worker under 80 kg may use it at a time

5. How often, at minimum, must an experienced person examine a scaffold?

   1. At least once every 5 years
   2. Only when it is put up
   3. At least once every 3 months
   4. At least once a year

6. A ladder rung is cracked. What must be done?

   1. Mark the cracked rung with paint and tell people to step over it
   2. Take the ladder out of service until repaired, with no splints or lashing
   3. Tape the rung and keep using the ladder carefully
   4. Use the ladder only to climb down, never to climb up with a load

7. What is the minimum clear width of a scaffold platform?

   1. 250 mm
   2. 1 m
   3. 300 mm
   4. 470 mm

8. A scaffold platform is covered in freezing rain. What does the Code provide?

   1. Only the foreman may go up, to break the ice with a sledgehammer
   2. Workers may go up if they hold on to the guardrail
   3. No one may stand on it until a non-slip material has been spread
   4. Workers may go up if they wear boots with crampons and hold on tight

9. A ladder is too short to reach a roof. Can it be extended by tying another ladder to it end to end?

   1. No, joining two ladders end to end is banned
   2. Yes, if the joint is tied tightly with wire
   3. Yes, if both ladders are the same make and model
   4. Yes, if a co-worker holds the bottom during the climb

10. A ladder is 8 m long between its supports. About how far from the wall should its foot be?

    1. About 2 m to 2.7 m (1/4 to 1/3 of its length)
    2. About 6 m, so it lies almost flat on the ground
    3. About 4 m, which is half the ladder's length
    4. Right against the wall, so it stands as straight as possible

11. Under whose supervision must a scaffold be put up and taken down?

    1. The concrete supplier
    2. A qualified person
    3. The CNESST inspector
    4. The youngest worker

12. Which of these uses of a stepladder is banned?

    1. Engaging its locking device
    2. Using the platform or the pail shelf as a step
    3. Opening it fully before climbing
    4. Using it on a dry, level floor with clear space around it

13. An electrician wants to use an aluminium stepladder near an exposed electrical circuit. What does the Code say?

    1. It is allowed if the stepladder has rubber feet
    2. It is allowed if he wears leather gloves and well-insulated rubber boots
    3. It is allowed if the circuit is under 600 volts in total
    4. It is banned for a metal stepladder or one with metal reinforcements

14. When may a ladder be used as a work station instead of a scaffold?

    1. For any work done by one person
    2. For jobs lasting less than one hour
    3. For any work less than 6 m up
    4. For jobs lasting less than one day