Distortion is an unwanted change in the shape of a(n) ____.

a. AC signal
b. static volume
c. DC impedance
d. amplifier load


a. AC signal

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The saw blades used for cutting masonry, concrete and stone are made of diamond-tipped steel. Why is that so?

What will be an ideal response?

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Ready accessibility to wiring in luminaires is ____.

A. required in all cases B. required when a building is considered "public" C. not required D. not required if there is a junction box nearby

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The run winding on a compressor has a resistance of 0 ?. This indicates that:

A) The winding is open. B) The winding is grounded. C) The winding has continuity and is good. D) The winding is shorted.

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What color wire is always the hot wire and must be protected by a circuit breaker or fuse?

A. Black B. White C. Red D. Blue

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