Red Seal Industrial Mechanic (Millwright) Practice Exam

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What is the purpose of a lockout/tagout procedure?

To enhance machine speed.
To ensure proper coding in machinery.
To allow machine operators to work without supervision.
To ensure that machines are properly shut off and not able to be started up again until maintenance is complete.

The correct answer is: To ensure that machines are properly shut off and not able to be started up again until maintenance is complete.

The purpose of a lockout/tagout procedure is to ensure that machinery is properly shut off and cannot be started again until maintenance is completed. This safety protocol is crucial in industrial settings where equipment may inadvertently power up during maintenance, posing significant risks to workers. By using locks and tags, workers can effectively communicate that a machine is not in service, thereby preventing accidental or unauthorized operation. This procedure is part of broader safety regulations aimed at protecting workers from electrical and mechanical hazards, ensuring a safe working environment when maintenance or repair operations are conducted.