To fasten a duct hanger strap to a floor joist, the nail used would be a ____.

A. finishing nail
B. common nail
C. roofing nail
D. masonry nail


Answer: C

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Technician A says that caustic cleaning solutions may be used to clean any automobile engine part. Technician B says that some newer cleaning solutions are water based and environmentally friendly. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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What was the outcome of the Fourth Crusade?

a. the defeat of Saladin and the conquest of Jerusalem b. the destruction of Alexandria in Egypt c. the massacre of thousands of Jews in Rome d. the conquest of the Byzantine Empire by western crusaders

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A common type of defrost control used on air-source heat pumps is:

A) Time initiated and time terminated. B) Time initiated and temperature terminated. C) Demand defrost based on suction pressure. D) Demand defrost based on compressor current draw.

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The binary equivalent of hexadecimal 44 is ________

A) 01011000 B) 10011010 C) 10001100 D) 01000100

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