Any penetrations through walls or floors required for the riser pathways must be neatly sleeved and _____.

a. grounded
b. firestopped
c. terminated
d. labeled


b. firestopped

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____ are good metals to gouge because there is almost no cleanup.

A. Copper and magnesium B. Zinc and iron C. Stainless steel and aluminum D. Carbon steel and copper

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Thermostatic expansion valves are the only metering devices used in high pressure chillers.

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

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Profile tolerance is used to control only form

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

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In a DC series motor, how much of its full-load torque is developed at starting?

a. 50% b. 100% c. 250% d. 500%

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