When the signal person stands with arm extended, thumb pointing down, and flexes her fingers in and out,

the crane operator is to _____.

a. dog everything
b. drive the crane forward with boom down
c. raise the boom
d. lower the boom and raise the load


d

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The most commonly used conductor tubes have a ____ angle.

A. 15° B. 30° C. 45° D. 60°

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An advantage of a "parallel flow" configuration of ground loops is ____.

A. smaller diameter pipes B. ease of removing trapped air C. simplified flow path D. higher heat transfer per foot

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?What is the maximum interpass temperature allowed for the plain carbon steel AWS SENSE workmanship samples?

A. ?120°F (49°C) B. ?100°F (37°C) C. ?150°F (65°C) D. ?135°F (57°C)

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If the true power is 10 W and the reactive power is 10 VAR, the apparent power is ________

A) 20 VA B) 5 VAT C) 100 VA D) 14.1 VA

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