The Fahrenheit scale is based on boiling water at sea level at what temperature?
A: 459 degrees
B: 212 degrees
C: 180 degrees
D: 100 degrees correct answers B: 212 degrees
Zero pounds gauge corresponds on the absolute scale to:
A: 144
B: 212
C: 14.7
D: ze...
Charging a heat pump with refrigerant is best accomplished in the
mode.
A: Heating
mode
B: Cooling
mode
C: Defrost
mode
D: Emergency heating mode correct answers B:
Cooling mode
Heat pumps can provide both heating in the winter and cooling in the
summer.
mode is theIn which
heat pump more
efficient?
A: Heating
mode
B: Cooling
mode
C: Defrost
mode
D: Emergency heating mode correct answers A:
Heating mode
Which of the following components is exclusive to the
heat pump?
A:
Condenser
B: Oil
separator
C: Reversing
valve
D: Accumulator correct answers C: Reversing
valve
Which of the following airflow rates is the most reasonable for a heat
pump system
operating in the heating
cycle?
A: 200 cfm per
ton
B: 300 cfm per
ton
C: 400 cfm per
ton
D: 450 cfm per ton correct answers D: 450 cfm
per ton
, During the heat pump's cooling cycle, the outdoor coil is utilized as a
while
the indoor coil is utilized as a
.
A: Condenser,
evaporator
B: Evaporator,
condenser
C: Compressor,
accumulator
D: Accumulator, condenser correct answers A: Condenser,
evaporator
Heat is present in winter outdoor air until the outside air ambient
temperature
low reaches a
temperature
of:
A: 0 degrees
F
B: 32 degrees
F
C: 273 degrees
F
D: -459 degrees F correct answers D: -459
degrees F
Technically this is true, but not practical. A heat pump is doing good to
continue
below 10 to work
deg F unless specifically designed for lower
temperatures.
The heat pump
utilizes:
A: Two filter-driers with check
valves
B: One bi-flow filter-
drier
C: A single mono-flow filter-drier in the
liquid line
D: Some use the bi-flow filter-drier and others use two filter-driers with
check valves
correct answers D: Some use 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 and select the heat pump
calculations
size by:
A: Adding the heating load and cooling
loads
B: Subtracting the smaller load from the
larger load
C: Using the heating load to size the
system
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