Massachusetts Hoisting License Practice Test

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Prepare for the Massachusetts Hoisting License Test. Utilize flashcards and multiple choice questions designed with hints and explanations to sharpen your skills. Ace your exam with confidence!

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What safety system is used for de-energized circuits?

Shock absorbent system
Grounding wire system
Lockout tagout total de-energization system
Safety lock mechanism

The correct answer is: Lockout tagout total de-energization system

The lockout/tagout total de-energization system is crucial for ensuring the safety of workers who are servicing or maintaining electrical equipment. This system involves a set of procedures that physically isolate and de-energize equipment to prevent accidental start-up or the release of stored energy while maintenance is occurring. In practice, when a worker needs to perform maintenance on machinery or electrical circuits, they will use locks and tags to indicate that the equipment is not to be operated. These locks prevent anyone from inadvertently energizing the equipment while maintenance is being performed, significantly reducing the risk of electrical shock or injury. This system is part of OSHA's (Occupational Safety and Health Administration) mandated safety practices and is widely recognized as a best practice in the industry for managing hazardous energy. By removing all sources of power and securely locking out the equipment, workers can safely perform their tasks without the fear of unexpected re-energization. The other options, while related to safety, do not specifically address the comprehensive procedures required for handling de-energized circuits effectively. For example, shock absorbent systems, grounding wire systems, and safety lock mechanisms can contribute to overall safety but do not encompass the complete process necessary for lockout/tagout operations.