As a General Rule, Equipment Installed in a Class II

question 7

Multiple Choice

As a general rule, equipment installed in a Class II location must be ________.

• A) dustproof
• B) explosionproof
• C) waterproof
• D) dust-ignitionproof

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Definitions:

Diaphragm

A muscular and membranous partition separating the abdominal and thoracic cavities, involved in the breathing process as it contracts and relaxes.

Adduction

The movement of a limb or other part of the body toward the midline of the body or towards another part of the body.

Contracture

Permanent shortening or contraction of a muscle.

Skeletal Muscle Tissue

A type of muscle tissue that is attached to bones and is responsible for voluntary movements of the body.