Flat sheet metal is mainly used as _____.

a. one of the primary lagging covers on walls
b. a backing to stabilize insulation against the lagging sheet
c. lagging for roofs
d. flashing


d. flashing

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. What is D when N = 50 and Pn = 10? Round to three decimal places.

A. 707.214 B. 7.072 C. 70.776 D. 7.819

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Inductive ammeters work because of what principle?

A) A voltage drop as it flows through a conductor B) A magnetic field surrounds any wire carrying a current C) Electrostatic electricity D) Magic

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When making GTAW V-groove welds on aluminum plate, clean each completed weld with a(n) _____

a. bastard file b. chipping hammer c. aluminum wire brush d. stainless-steel wire brush

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What is the reference voltage in an ADC?

A) +1.28 V B) +2.56 V C) -1.28 V D) -2.56 V

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