Working at Heights: Harnesses, lanyards and connectors

All 16 questions in this test

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

1. 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

2. 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

3. 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

4. How should a full body harness fit?

   1. Loose enough to slip off over the head easily when sitting
   2. As tight as possible, even if it cuts off circulation
   3. Worn over the shoulders only, with leg straps left open
   4. Snug but allowing free movement, with loose straps tucked in

5. What is "roll-out" with a snap hook?

   1. A lanyard rolling up neatly into its storage pouch
   2. The worker rolling over after landing in a safety net
   3. A hook rolling off the work platform when it is dropped by accident
   4. A twist that forces the gate open and separates the hook

6. 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

7. 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

8. 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

9. Why is a full body harness better than a safety belt in a fall?

   1. It removes the need for any anchor point
   2. It lets the worker fall a longer distance
   3. It is cheaper to buy and lighter to carry around
   4. It spreads the force over more of the body

10. How does a tear-webbing shock absorber work?

    1. A motor slowly lowers the worker to the ground after a fall
    2. A spring pulls the worker back up to the platform automatically
    3. It inflates like an airbag around the worker's upper body
    4. Stitches tear apart in sequence to absorb the force of the fall

11. How many people may use one lanyard at a time?

    1. Two
    2. Any number
    3. Three
    4. One

12. What gate features should a carabiner have?

    1. Closed only with tape
    2. Self-closing and self-locking
    3. Open, with no gate on it at all
    4. Locked shut with a padlock

13. How must a rope grab be installed on a lifeline?

    1. On any rope at all, whatever the diameter of the rope
    2. Top toward the anchor, on rope of the specified diameter
    3. Clipped directly to the guardrail instead of a lifeline
    4. Upside down, so it slides freely toward the ground in a fall

14. On a harness label, which class letter means fall arresting?

    1. P
    2. D
    3. A
    4. E

15. 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

16. Which harness may be needed on a construction project with an electrical arc flash hazard?

    1. A safety belt with an extra-long wire rope lanyard attached
    2. Any standard class A harness with the usual steel connectors
    3. An ADELP harness rated for arc flash, with compatible connectors
    4. No harness, since electrical work never involves heights