
Heat pump
Quiz
•
Engineering
•
University
•
Practice Problem
•
Easy
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99 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has an
Reversing valve
Demand defrost happens only when needed and timed defrost is based on time/temperature.
Slightly above the initial balance point.
Initial balance point
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The outdoor temperature at which the heat pump provides the same amount of heat as the heat loss of the conditioned space without an auxiliary heat is known as the;
Initial balance point
Cooling load.
As near to the main return air grill as possible.
Emergency heat mode.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between "demand defrost" and "timed defrost"?
Demand defrost happens only when needed and timed defrost is based on time/temperature.
In a moderate climate zone.
Simply disconnect power to the unit momentarily.
Dividing the Btu's removed by the watts consumed during the cooling season.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The thermostat that controls the auxiliary electric heat according to the outdoor temperature is called the;
Outdoor ambient thermostat
Emergency heat mode.
Emergency heat mode.
Simply disconnect power to the unit momentarily.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what temperature is an outdoor ambient thermostat normally set?
Slightly above the initial balance point.
Two outdoor coils with each one incorporating a dual stage compressor.
Emergency heat mode.
As near to the main return air grill as possible.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is;
The outdoor fan is inoperative.
The building's heat load.
Cooling load.
Two outdoor coils with each one incorporating a dual stage compressor.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In order to determine a heat pumps' balance point, you must first calculate;
The building's heat load.
Cooling load.
Two outdoor coils with each one incorporating a dual stage compressor.
As near to the main return air grill as possible.
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