____ troweled over a metal lath is a lightweight fire protection material.

A. Fire-resistant sheets
B. Lightweight plaster
C. Mineral fiber
D. Gypsum blocks


Answer: B

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Determine the height of gage blocks required to set an angle of 52.1o on a 10'' sine bar. Give your answer to the nearest thousandth inch.

A. 7.891 B. 8.557 C. 7.678 D. 6.700

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A ____ mine is used when a passageway is bored into a hill or mountain

A) drift B) shaft C) slope D) none of these

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A 45-degree angle is commonly selected for manual crosshatching.

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

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Heat flows from a hot object to an object containing less heat.

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

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