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Heat Pumps Practice Quiz Questions Answers
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Question 1 of 15
1. Question
1 pointsDuring the defrost cycle, the heat pump switches from ______ to _______:
Correct
During the defrost cycle, the heat pump switches from the heating mode to the cooling mode. This is because the heat pump needs to remove the frost that has accumulated on the outdoor coil. The cooling mode is more effective at removing frost than the heating mode.
Incorrect
During the defrost cycle, the heat pump switches from the heating mode to the cooling mode. This is because the heat pump needs to remove the frost that has accumulated on the outdoor coil. The cooling mode is more effective at removing frost than the heating mode.
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Question 2 of 15
2. Question
1 pointsThe heat pump is a heat multiplier:
Correct
Yes, a heat pump is a heat multiplier. It can move heat from a colder space to a warmer space, or vice versa. This is done by using a refrigerant, which is a substance that can change from a liquid to a gas and back again.
Incorrect
Yes, a heat pump is a heat multiplier. It can move heat from a colder space to a warmer space, or vice versa. This is done by using a refrigerant, which is a substance that can change from a liquid to a gas and back again.
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Question 3 of 15
3. Question
1 pointsHeat pumps takes ____ air and makes it ____ air
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Question 4 of 15
4. Question
1 pointsThe heat pump can take the heat generated by a refrigeration unit and use it to heat a house or room:
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Question 5 of 15
5. Question
1 pointsA heat-pump system requires different air quantity for heating and cooling
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Incorrect
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Question 6 of 15
6. Question
1 pointsIn heating mode, the outdoor coil of the heat pump is an _____:
Correct
In heating mode, the outdoor coil of the heat pump is an evaporator. From the outside air, the refrigerant in the evaporator coil absorbs the heat and is then circulated to the indoor coil, where the heat is released into the home.
Incorrect
In heating mode, the outdoor coil of the heat pump is an evaporator. From the outside air, the refrigerant in the evaporator coil absorbs the heat and is then circulated to the indoor coil, where the heat is released into the home.
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Question 7 of 15
7. Question
1 pointsIn the winter, a heat pump moves heat from the outside air into the home
Correct
In the winter, the refrigerant absorbs heat from the outside air as it changes from a liquid to a gas. The hot gas is then circulated to the indoor coil, where it releases the heat into your home.
Incorrect
In the winter, the refrigerant absorbs heat from the outside air as it changes from a liquid to a gas. The hot gas is then circulated to the indoor coil, where it releases the heat into your home.
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Question 8 of 15
8. Question
1 pointsAir requires larger ducts to transfer relatively small amounts of heat
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Question 9 of 15
9. Question
1 pointsThe coefficient of performance (COP) of heat pumps _____ with increasing temperature difference:
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Question 10 of 15
10. Question
1 pointsCoefficient of Performance (COP) is used to describe the ratio of useful heat movement per _____:
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Question 11 of 15
11. Question
1 pointsWhen there is a wide temperature differential between the hot and cold reservoirs, the COP is ______:
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Question 12 of 15
12. Question
1 pointsIn extreme cold weather the COP will go up
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Question 13 of 15
13. Question
1 pointsWhen there is a high temperature differential, it takes _____ work for the heat pumps to move the same amount of heat to indoors than on a milder day
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Question 14 of 15
14. Question
1 pointsWhen it is extremely cold outside, it is _____ economical to use heat pump compared to other heat sources (electric resistance heater, oil furnace, or gas furnace)
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Question 15 of 15
15. Question
1 pointsIn case of the electrically operated heat pumps, the heat transferred can be _____ times larger than the electrical power consumed
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Incorrect