Loops in the piping system that absorb the movement of the line caused by expansion and contraction are known as _____ loops.

a. expansion
b. contraction
c. control
d. thermal


a. expansion

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Elements are ____ when connected to establish electrical continuity and connectivity.

a. glued b. secured c. bonded d. charged

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

You should never work on a fuel gas system when the gas is on.

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What is the minimum and maximum acceptable length of part A?

What will be an ideal response?

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The three-way switch is actually a ____ (SPDT) switch.

a. single-pole dynamic-throw b. several-pole dynamic-throw c. single-pole double-throw d. several-pole double-throw

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