Question 1

The basic diagnostic tool used on a refrigerant system is the?

Accepted Answer

The answer of The basic diagnostic tool used on a...

Question 2

The metering device changes high-pressure liquid to

Accepted Answer

A)  a low-pressure vapor. 
B)  a low-pressure liquid. 
C)  a high-pressure liquid. 
D)  any of the above, depending on the outside air temperature. 
A)  a low-pressure vapor. 
B)  a low-pressure liquid. 
C)  a high-pressure liquid. 
D)  any of the above, depending on the outside air temperature.

Question 3

Technician A  says that an evaporator is a heat exchanger.Technician B  says that a condenser is a heat exchanger.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 4

The accumulator contains low-pressure vapor.

Accepted Answer

A) True 
 B)False

Question 5

An air conditioning system with an expansion valve will also have a ______.

Accepted Answer

The answer of An air conditioning system with an expansion...

Question 6

The temperature of superheated refrigerant is

Accepted Answer

A)  at its boiling point. 
B)  above its boiling point. 
C)  below its boiling point. 
D)  none of the above. 
A)  at its boiling point. 
B)  above its boiling point. 
C)  below its boiling point. 
D)  none of the above.

Question 7

What is the main chemical advantage of R-134a refrigerant over R-12 refrigerant?

Accepted Answer

R-134a does not cont

Question 8

Technician A  says the air conditioning system is designed to remove heat from the passenger compartment.Technician B  says the air conditioning system is designed to tranfer heat absorbed to the outside air.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 9

The compressor changes a low-pressure vapor to

Accepted Answer

A)  a low-pressure liquid. 
B)  a high-pressure liquid. 
C)  a high-pressure vapor. 
D)  any of the above, depending on the outside air temperature. 
A)  a low-pressure liquid. 
B)  a high-pressure liquid. 
C)  a high-pressure vapor. 
D)  any of the above, depending on the outside air temperature.

Question 10

What system pressures are on each side of the compressor?

Accepted Answer

The compressor is one of the points in t

Question 11

Technician A  says that the accumulator is on the high-pressure side of the refrigerant system.Technician B  says that the receiver-drier is attached to the evaporator outlet on the refrigerant system.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 12

What is the function of the refrigerant condenser?

Accepted Answer

The condenser is a h

Question 13

When the air conditioning system is operating all of the following happens inside the evaporator,EXCEPT:

Accepted Answer

A)  the refrigerant removes heat from the outside air. 
B)  the refrigerant changes from a vapor to a liquid. 
C)  heat entering the refrigerant causes it to change state. 
D)  the refrigerant absorbs heat. 
A)  the refrigerant removes heat from the outside air. 
B)  the refrigerant changes from a vapor to a liquid. 
C)  heat entering the refrigerant causes it to change state. 
D)  the refrigerant absorbs heat.

Question 14

What affect does the receiver dryer have on the refrigerant?

Accepted Answer

A)  Changes the refrigerant from a liquid to a vapor. 
B)  Increases the high-side refrigerant pressure. 
C)  Acts as a storage container for liquid refrigerant. 
D)  None of the above. 
A)  Changes the refrigerant from a liquid to a vapor. 
B)  Increases the high-side refrigerant pressure. 
C)  Acts as a storage container for liquid refrigerant. 
D)  None of the above.

Question 15

The metering device changes high-pressure liquid into a

Accepted Answer

A)  low-pressure liquid. 
B)  high-pressure vapor. 
C)  low-pressure vapor. 
D)  Any of the above, depending on the outside air temperature. 
A)  low-pressure liquid. 
B)  high-pressure vapor. 
C)  low-pressure vapor. 
D)  Any of the above, depending on the outside air temperature.

Question 16

What does the air conditioning compressor do to the system refrigerant?

Accepted Answer

A)  Increases its volatility. 
B)  Increases its pressure 
C)  Changes it form a vapor to a liquid. 
D)  Increases its speed. 
A)  Increases its volatility. 
B)  Increases its pressure 
C)  Changes it form a vapor to a liquid. 
D)  Increases its speed.

Question 17

The receiver-dryer is located on the low-pressure side of the system.

Accepted Answer

A) True 
 B)False

Question 18

What component is used and how does liquid refrigerant lower passenger compartment temperature?

Accepted Answer

Liquid refrigerant flows into

Question 19

The low-side gauge is capable of reading a vacuum when necessary.

Accepted Answer

A) True 
 B)False

Question 20

The condenser is on the low-pressure side of the system.

Accepted Answer

A) True 
 B)False

The basic diagnostic tool used on a refrigerant system is the?

The metering device changes high-pressure liquid to

Technician A says that an evaporator is a heat exchanger.Technician B says that a condenser is a heat exchanger.Who is correct?

The accumulator contains low-pressure vapor.

An air conditioning system with an expansion valve will also have a ______.

The temperature of superheated refrigerant is

What is the main chemical advantage of R-134a refrigerant over R-12 refrigerant?

Technician A says the air conditioning system is designed to remove heat from the passenger compartment.Technician B says the air conditioning system is designed to tranfer heat absorbed to the outside air.Who is correct?

The compressor changes a low-pressure vapor to

What system pressures are on each side of the compressor?

Technician A says that the accumulator is on the high-pressure side of the refrigerant system.Technician B says that the receiver-drier is attached to the evaporator outlet on the refrigerant system.Who is correct?

What is the function of the refrigerant condenser?

When the air conditioning system is operating all of the following happens inside the evaporator,EXCEPT:

What affect does the receiver dryer have on the refrigerant?

The metering device changes high-pressure liquid into a

What does the air conditioning compressor do to the system refrigerant?

The receiver-dryer is located on the low-pressure side of the system.

What component is used and how does liquid refrigerant lower passenger compartment temperature?

The low-side gauge is capable of reading a vacuum when necessary.

The condenser is on the low-pressure side of the system.

Heating and Air Conditioning - History and the Environment

Temperature and Pressure Fundamentals

Engine Cooling and Comfort Heating Systemsdiagnosis and Service of Engine Cooling and Comfort Heating Systems

Refrigerant System Componentsservicing System Components

Refrigerant System Servicing and Testingair-Conditioning System Servicing and Testing

Diagnosis of the Refrigeration System

Compressors and Clutches

Case and Duct Systems

System Controlsdiagnosis and Service of System Controls

Retrofit and Future Trends

Extenssion 1: Shop Safety

Extenssion 2: Typical Shop Procedures and Tools

Filters

Exam 4: Air-Conditioning System Operating Principlesthe Manifold and Gauge Set

The basic diagnostic tool used on a refrigerant system is the?

The metering device changes high-pressure liquid to

Technician A says that an evaporator is a heat exchanger.Technician B says that a condenser is a heat exchanger.Who is correct?

The accumulator contains low-pressure vapor.

An air conditioning system with an expansion valve will also have a ______.

The temperature of superheated refrigerant is

What is the main chemical advantage of R-134a refrigerant over R-12 refrigerant?

Technician A says the air conditioning system is designed to remove heat from the passenger compartment.Technician B says the air conditioning system is designed to tranfer heat absorbed to the outside air.Who is correct?

The compressor changes a low-pressure vapor to

What system pressures are on each side of the compressor?

Technician A says that the accumulator is on the high-pressure side of the refrigerant system.Technician B says that the receiver-drier is attached to the evaporator outlet on the refrigerant system.Who is correct?

What is the function of the refrigerant condenser?

When the air conditioning system is operating all of the following happens inside the evaporator,EXCEPT:

What affect does the receiver dryer have on the refrigerant?

The metering device changes high-pressure liquid into a

What does the air conditioning compressor do to the system refrigerant?

The receiver-dryer is located on the low-pressure side of the system.

What component is used and how does liquid refrigerant lower passenger compartment temperature?

The low-side gauge is capable of reading a vacuum when necessary.

The condenser is on the low-pressure side of the system.

Heating and Air Conditioning - History and the Environment

Temperature and Pressure Fundamentals

Engine Cooling and Comfort Heating Systemsdiagnosis and Service of Engine Cooling and Comfort Heating Systems

Refrigerant System Componentsservicing System Components

Refrigerant System Servicing and Testingair-Conditioning System Servicing and Testing

Diagnosis of the Refrigeration System

Compressors and Clutches

Case and Duct Systems

System Controlsdiagnosis and Service of System Controls

Retrofit and Future Trends

Extenssion 1: Shop Safety

Extenssion 2: Typical Shop Procedures and Tools

Filters