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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