The pressure of a low-pressure chiller is raised for leak testing by:

A) Adding nitrogen to the chiller bundle.
B) Circulating warm water through the chiller bundle.
C) Adding refrigerant to the chiller bundle.
D) Operating the chiller.


B

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Banks, office towers, and schools would be classified as what type of project?

a. Residential b. Building construction c. Industrial d. Heavy construction

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Briefly define the term voltage.?

What will be an ideal response?

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The triac turns off when __________.

A. the voltage is removed from the gate B. the amperage flowing through the triac falls below the holding current value

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Low-carbon steel, or mild steel (MS), has a low level of carbon and is relatively soft and easy to work.

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

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