A lagging power factor is caused by __________.

A. normal excitation
B. overexcitation
C. underexcitation


Answer: C

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Define an orifice and its function.

What will be an ideal response?

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Many general expense items are calculated as a function of the duration of the project.

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

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The TD (temperature difference) between evaporator and box temperature of a reach-in is:

a. 35° b. 20° c. 10° d. 5°

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A thermostat that can control multiple levels of heating and cooling is called a/an ____ thermostat.

A. isolating B. zoning C. setback D. staging

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