Light emitting diodes can be checked with a (an) ________.
A. rheostat
B. electromechanical flasher
C. digital multimeter
D. ohmmeter
Answer: D
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What industry is classified as a process industry?
A) Oil and gas B) Power generation C) Food and beverage D) All of the above
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If a large cutting tip pops when the acetylene is turned off, ____.
A. turn the oxygen off first B. turn the acetylene back on C. it is defective and must be discarded D. it must be repaired
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Air-source packaged heat pumps are commonly available in:
A) Top discharge, bottom discharge, and floor mount configurations. B) Gas-fired, oil-fired, and electric units. C) Side discharge, bottom discharge, or wall mount configurations.
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What is the term for the weather resistant surface of a roof?
a. tar paper b. covering c. skin d. decking
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