Unit 62 - Exam

Question

How does the heating-cycle charge compensator aid the heating cycle?

Answer 1

It makes the gas line cold.

Answer 2

It raises the temperature of the refrigerant.

Answer 3

It stores the unneeded refrigerant.

Answer 4

It fills with hot air.

Answer 5

HSPF takes data from multiple weather conditions.

Answer 6

Only the HSPF measures heating and cooling units.

Answer 7

Only the COP measures defrost.

Answer 8

COP takes data from multiple weather conditions.

Answer 9

In a liquid receiver

Answer 10

In the compressor crankcase

Answer 11

In a suction accumulator or charge compensator

Answer 12

In the metering device

Answer 13

COP is the ratio of heat output divided by heat input measured at one particular condition

Answer 14

COP is a measure of heating BTUs per watt averaged for the entire heating season

Answer 15

COP is a measure of heating BTUs per watt measured at one particular condition

Answer 16

COP is the ratio of heat output divided by heat input averaged for the entire heating season

Answer 17

HSPF is the ratio of heat output divided by heat input measured at one particular condition.

Answer 18

HSPF is a measure of heating BTUs per watt measured at one particular condition

Answer 19

HSPF is the ratio of heat output divided by heat input averaged for the entire heating season

Answer 20

HSPF is a measure of heating BTUs per watt averaged for the entire heating season

Answer 21

The outdoor check valve

Answer 22

The heating shutoff valve

Answer 23

The indoor check valve

Answer 24

The reversing valve

Answer 25

Heat pump A

Answer 26

Heat pump B

Answer 27

They are about the same heating efficiency by the time both the SEER and HSPF are considered

Answer 28

Neither the SEER nor the HSPF can determine which heat pump heats more efficiently

Answer 29

Fossil fuel furnaces have been around longer.

Answer 30

Fossil fuel furnaces are hotter.

Answer 31

Heat pumps are easier to install.

Answer 32

Heat pumps move heat instead of creating it.

Answer 33

The friction of the air passing over the outdoor coil raises the temperature

Answer 34

All molecules contain some heat until they reach absolute 0 (-460ºF)

Answer 35

Air source heat pumps only use the outdoor air in the cooling season

Answer 36

All heating is accomplished with electrical resistance heaters, so the air temperature is irrelevant

Answer 37

Reduce the pressure on the low side of the system

Answer 38

Raise the pressure on the low side of the pump

Answer 39

Decrease the pressure on the high side of the pump

Answer 40

Add more refrigerant into the pump

Answer 41

compressor, reversing valve, indoor coil, outdoor TEV, outdoor coil, reversing valve

Answer 42

reversing valve, indoor coil, outdoor coil, outdoor TEV, compressor

Answer 43

Indoor TEV, indoor coil, reversing valve, compressor, reversing valve, outdoor coil

Answer 44

compressor, reversing valve, outdoor coil, indoor TEV, indoor coil, reversing valve

Answer 45

During both the defrost and cooling cycles

Answer 46

During the cooling cycle

Answer 47

During the defrost cycle

Answer 48

During the heating cycle

Answer 49

A small gear motor that is operated on 24 volts engages gears on the back of the valve core

Answer 50

An electronic stepper motor mounted on one end of the reversing valve

Answer 51

Pressure difference from one side of the valve to the other

Answer 52

A solenoid coil creates a magnetic field that pulls the valve to one end and repels it to the other

Answer 53

condensation

Answer 54

refrigerant

Answer 55

the air inside the house

Answer 56

the air outside the house

Answer 57

the water in the water loop

Answer 58

electric strip heat

Answer 59

by their cooling source and cooling sink

Answer 60

by their air intake pump

Answer 61

by their heat source and heat sink

Answer 62

by their refrigerant type

Answer 63

By the shiny, polished appearance of the stainless steel core

Answer 64

By the two copper lines on each end of the drier

Answer 65

By the 600 psig pressure rating

Answer 66

By the directional arrows pointing towards both ends of the drier

Answer 67

The cooling cycle

Answer 68

The heating cycle

Answer 69

Both the cooling and defrost cycles

Answer 70

Both the heating and defrost cycles

Answer 71

The heating cycle

Answer 72

The cooling cycle

Answer 73

Both the cooling and defrost cycles

Answer 74

Both the heating and cooling cycles

Answer 75

can be used with two different refrigerants by selecting the correct flow

Answer 76

can be used for creating two stages of heating or cooling

Answer 77

allows refrigerant flow in both directions

Answer 78

can be used with two different capacity units by selecting the correct flow

Answer 79

when the defrost cycle is terminated and the cycle reverses

Answer 80

when the heat pump is operated in cooling with a low charge

Answer 81

when the liquid filter drier is stopped up

Answer 82

when the heat pump is operated in heating on a warm day

Answer 83

Heat pump A

Answer 84

Heat pump B

Answer 85

They are about the same heating efficiency by the time both the SEER and HSPF are considered

Answer 86

Neither the SEER nor the HSPF can determine which heat pump heats more efficiently

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Unit 62 - Exam

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	Criado por Neil Revollo quase 9 anos atrás