Red Seal Transport Trailer Technician Practice Questions - Red Seal Transport Trailer Technician Exam

When performing maintenance on a trailer air system, what is the correct lockout/tagout (LOTO) safety procedure?

Disconnect the tractor electrical cord and place it in the cab Install gladhand lockouts on the trailer service and emergency gladhands Turn off the tractor engine and remove the ignition key Drain the primary air tank and leave the drain valves open

Correct Answer:

Install gladhand lockouts on the trailer service and emergency gladhands

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