Technician A torques critical parts using an impact wrench. Technician B torques critical parts with an air ratchet. Who is correct?

A. A only
B. B only
C. both A and B
D. neither A nor B


Answer: D

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Sheet metal is 3/16" or ____________________(less/more) in thickness.

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

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The civil engineer’s 20 scale is often used in mechanical drafting as a , decimal-inch scale.

a. full b. half c. quarter d. double

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The area in a building where cows are milked is called the ____________________

Fill in the blank(s) with correct word

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Why is the power wire to the indoor blower coil of an air source heat pump typically very large?

A) To handle the high ampdraw of the oversized fan motor required for heat pump operation B) To handle the high combined amp draw of the compressor and heat strips C) To handle the high amp draw of the electric auxiliary heat strips D) To handle the high amp draw of the compressor

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