The heater control valve, if used, shuts off the coolant flow to the heater core when what setting is selected?

A) Defrost
B) Max cooling
C) Recirculation
D) Bi-level (both dash vents and floor vents)


B) Max cooling

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Which one of the following engineering disciplines is most likely to be involved with designing a heating, cooling, and ventilation for a building?

a. Mechanical Engineering b. Civil Engineering c. Electrical Engineering d. Chemical Engineering e. Aerospace Engineering

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What kind of expansion tank must be installed above the highest terminal unit?

A) Diaphragm type B) Open type C) Closed type D) Pressure-relief type

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Which anticipators are adjustable?

A. heating B. cooling C. both D. neither

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The fastest and most accurate method of creating the wall molding level line is ________

A) To have two workers use an 8' level and T-square B) To use a laser level C) To use a line level D) To use a 4' level and measuring tape

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