ASP Construction Exam: Electricity and lockout

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. Which of these must an extension cord have on a site?

   1. A maximum length of 5 m, whatever the type of circuit
   2. An orange jacket, whatever its gauge or use
   3. A plug without a ground pin to avoid tripping the breaker
   4. A grounding conductor and a design for outdoor use

2. A worker uses an extension cord as a rope to lower a bucket. Why is this not allowed?

   1. An extension cord must never be unrolled outside a building, even in dry weather
   2. The cord must stay plugged in at all times during the day
   3. Only an electrician may touch an extension cord on a site
   4. An electrical conductor may only be used for its intended purpose

3. What is the first step of lockout under the Code?

   1. Putting your padlock on the isolation point
   2. Checking that the machine will no longer start up
   3. Deactivating the machine and stopping it completely
   4. Removing the guards to reach the part

4. What does "single-key" mean for a lockout padlock?

   1. The padlock opens with only one key
   2. The padlock opens with the contractor's master key
   3. The padlock has a four-digit combination code
   4. The padlock is used once, then thrown away

5. What must a portable electric tool meet on a construction site?

   1. It must run on a battery, because corded tools are banned on sites
   2. It must be less than two years old, based on the purchase invoice date
   3. It must be grounded or double-insulated
   4. It must be checked by an electrician at the start of every shift

6. Three workers must enter a conveyor's danger zone. Who must lock out?

   1. Each of the three workers, with their own padlock
   2. No one, if the machine is stopped with the stop button
   3. The foreman alone, for the whole crew of three
   4. The most experienced worker, on behalf of the others

7. What should appear on a single-key padlock put on by a worker?

   1. Nothing, to protect the privacy of the worker who put it on
   2. The machine's serial number and its date of manufacture
   3. The purchase price and the store where it was bought
   4. The name of the person who installed it, unless a register is kept

8. Before which of these tasks is lockout, or an equivalent method, required?

   1. Clearing a jammed part in a machine's danger zone
   2. Walking past a generator while staying outside its danger zone
   3. Reading the manufacturer's manual in the site trailer
   4. Putting hand tools away in the truck at the end of the day

9. After putting on their padlock, what must a worker do before entering the danger zone?

   1. Verify that the lockout really prevents any restart
   2. Hand their key to the foreman for the duration of the work, in case a restart is needed
   3. Take their padlock off to let a co-worker through
   4. Sign the CNESST register posted on the machine

10. Do the lockout rules apply to work on an electrical installation?

    1. Only if the electrician asks
    2. Yes, with the necessary adaptations
    3. No, only to machines with motors
    4. Only above 600 volts

11. Who must make sure there is an energy-control procedure for every machine on the site?

    1. The municipal inspector
    2. The 30-hour course trainer
    3. The principal contractor
    4. The padlock's manufacturer

12. A hydraulic press is stopped and locked out, but a cylinder is still under pressure. Which step was missed?

    1. Eliminating or controlling residual or stored energy
    2. Writing the manufacturer's name on the padlock body
    3. Notifying the CNESST before starting work
    4. Posting the procedure at the site entrance

13. A worker went home and left their padlock on a machine. Who may authorize cutting the lock?

    1. Any worker who needs the machine and owns bolt cutters
    2. The principal contractor, with that worker's consent, after checking there is no danger
    3. No one: the machine must stay locked until the worker returns to the site, however long it takes
    4. The absent worker's foreman, with no other checks or written record

14. Under the Construction Safety Code, what does lockout mean?

    1. Hanging a "Do not use" tag on a machine's control panel without cutting the power
    2. Putting a single-key padlock on the isolating device of an energy source
    3. Locking the site trailer at the end of the work day
    4. Locking power tools in a box to prevent theft