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NATE HEAT PUMPS Part 1 Exam Questions and Answers
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NATE HEAT PUMPS Part 1 ExamQuestions and Answers
Charging a heat pump with refrigerant is best accomplishes in the _____
mode. - -Cooling mode
-Heat pumps can provide both heating in the winter and cooling in the
summer. In which mode is the heat pump more efficient? - -Heating mode
-Which of the following components is exclusive to the heat pump? - -
Reversing valve
-Which of the following airflow rates is the most reasonable for a heat pump
system operating in the heating cycle? - -450 cfm per ton
-During the heat pumps cooling cycle, the outdoor coil is utilized as a _____
while the indoor coil is utilized as a _____. - -Condenser, Evaporator
-Heat is present in winter outdoor air until the outside air ambient
temperature reaches a low temperature of: - --459 degrees F
-The heat pump utilizes: - -Some use of the bi-flow filter drier and others
use two filter driers with check valves
-The correct way to size a heat pump is to perform both heating and cooling
load calculations and select the heat pump size by: - -Using the cooling load
to size the system
-Auxiliary electric heat is necessary because: - --It provides heat for the
home during defrosts
-It provides heat for the home in the event of a heat pump failure
-It provides heat for the home if the heat pump is unable to meet the
demand for heat
-Reading a voltage across the contracts of the outdoor thermostat means: -
-The thermostat contacts are open
-What is not a type of heat pump? - -Direct coupled
-The coefficient of performance is determined by: - -Dividing the input btuh
by the output btuh
-The "balance point" of a heat pump is: - -The lowest temperature at which
the heat pump can meet the heating requirement for the structure
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