Before Opening Any Part of the Air Conditioning System Refrigerant

question 4

Multiple Choice

Before opening any part of the air conditioning system refrigerant must:

• A) Be evacuated
• B) Be allowed to cool down to relieve system pressure
• C) Be vented to the atmosphere
• D) Recovered

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Definitions:

Friction

The resistance that one surface or object encounters when moving over another.

Scales

Small, rigid plates that grow out of an animal's skin to provide protection. In fish and reptiles, scales perform this protective function.

Adaptation

The process by which organisms adjust to changes in their environment in order to survive and reproduce.

Creep

The slow movement of soil or rock down a slope, driven by gravity.