____ is a bonding, shearing, and tearing away of material from two contacting or sliding metals.

A. Spalling
B. Galling
C. Stripping
D. Gouging


Answer: B

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Finish cutting and trimming of a countertop laminate can be done with a laminate trimmer or a _____.

a. router b. circular saw c. jointer d. drum sander

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What procedure is used when heating a brazed copper joint?

A) Heat the fitting first and then heat the pipe after the fitting is hot. B) Heat the pipe first and then the fitting. C) Use a fanning motion to heat the fitting evenly and slowly. D) Concentrate the flame on the line where the pipe slips into the fitting.

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Which of the following is the 2's-complement for the signed number -5410?

A) 0000101 B) 0010101 C) 1111010 D) 1001010

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Technicians always perform this action first when working on an electrical circuit in a residential setting:

A) Turn off power at the service panel. B) Remove the covers from the affected unit. C) Call the power company. D) Test for voltage at the affected unit.

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