____ amplifiers are used as output stages of stereo systems and public address amplifiers, and in many industrial controls.

A. Class A
B. Class AB
C. Class B
D. Class C


Answer: C

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The symbol for the projection weld is identical to the spot-weld symbol.

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

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When cleaning a machine tool after use:

A) Use a brush to remove chips from the machine B) Blow chips with compressed air as long as the air pressure is not over 10 PSI C) Use a rag to remove chips from the machine D) Wash the entire machine with a non-flammable cleaning solvent

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Specialty tools:

a. should not be shared among techs b. should have tag-out practices for regular storage c. should be put in the proper storage space after each use d. can be used for purposes they were not designed for

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Define "bimetal strip."

What will be an ideal response?

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