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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