Red Seal Electrician Practice
Safety and work practicesQuestion 668 of 1506

Several trades work on one machine, and one worker says that everyone has locked out. What is the correct attitude?

  1. Trust the other workers and skip the voltage test on the circuit.
  2. Remove the other locks to speed up the work for everyone.
  3. Use the same single lock for all of the workers.
  4. Do not assume others followed the rules. Check for yourself.
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Correct answer: Do not assume others followed the rules. Check for yourself.

Some workers may not know the lock-out procedure or may be too relaxed to follow it.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 3.5: Safe Practices

Practice safety and work practices

Questions last reviewed: 18 October 2026