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Exam 1: Electrical Safety

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Question 1

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What is the purpose of a GFCI?

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A ground fault circuit interru...

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A(n) ____________________ is a device that permits the connection of a three-prong plug to a two-prong receptacle.

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When electricity flows near or through the heart for only a short period of time, it can cause ____________________ of the heart, in which the heart only flutters instead of beats.

A current flow through the body of ____________________ ampere or less can be fatal.

When working with electricity, always wear shoes with a(n) ____________________ sole and heel.

Wearing rings, watches, or other jewelry when working in close proximity to live electrical circuits is generally considered a safe practice.

When electricity passes through the body, the results can range from death to a slight, uncomfortable stinging sensation, depending upon the amount of electricity that passes through the body, the path the electricity takes, and the amount of time that the electricity flows.

One of the most important tasks that a service technician must learn is how to safely work around equipment when the power is being supplied to the equipment.

Electrical shock occurs when a person becomes part of an electrical circuit.

When a person is assisting an electrical shock victim, what is the first concern?

What is the purpose of the National Electric Code ?

In a case of ventricular fibrillation, unless the heart is returned to normal quickly, the person will usually ____________________.

A(n) ____________________ circuit is one that is being supplied with electrical energy.

What are the two most common methods of circuit protection in structures?

The electrical energy supplied to an electrical circuit is called ____________________, and it is measured in volts.

Discharge all capacitors with a(n) ____________________ ohm, four-watt resistor before touching the terminals.

Explain why circuit lockout is used.

Do not use metal ladders when working near live electrical circuits.

When assisting a person who is in contact with an electrical source, it is generally safe to touch him or her.

What is the purpose of a ground wire?