Which of the following is not an analog electrical signal?

A) a triangle wave B) a microphone output
C) a sine wave D) a square wave


D

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Which piping support protects piping, tubing, and hoses from vibration and shock?

A. Pipe shoes B. Pipe hangers C. Pipe clamps D. Expansion loop

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When state governments require a certain testing or skill level before allowing specialized work to be performed, this is called ____________________.

Fill in the blank(s) with the appropriate word(s).

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An electronic charging scale measures the volume of refrigerant flow into a refrigeration system.

Answer the following statement true (T) or false (F)

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ASE-Style Multiple Choice ____ are often needed in the collision repair facility to keep airborne materials from being inhaled into your nose, throat, and lungs.

A. Goggles B. Respirators C. Impervious gloves D. Jack stands

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