Question 1

A thermostatic expansion valve:

Accepted Answer

A)  Has no moving parts 
B)  Is positioned between the compressor and the condenser 
C)  Regulates the flow of refrigerant into the evaporator 
D)  Can only sense refrigerant pressure 
A)  Has no moving parts 
B)  Is positioned between the compressor and the condenser 
C)  Regulates the flow of refrigerant into the evaporator 
D)  Can only sense refrigerant pressure C

Question 2

The evaporator used in a truck air conditioning system is:

Accepted Answer

A)  Usually located in front of the vehicles radiator 
B)  In some way isolated from the ambient air 
C)  Responsible for heating the air within the vehicle cab 
D)  Not a type of heat exchanger 
A)  Usually located in front of the vehicles radiator 
B)  In some way isolated from the ambient air 
C)  Responsible for heating the air within the vehicle cab 
D)  Not a type of heat exchanger A

Question 3

The condenser is a component that:

Accepted Answer

A)  Transforms liquid refrigerant into vaporous refrigerant 
B)  Is always located behind the trucks radiator 
C)  Receives cold liquid refrigerant from the compressor 
D)  Is responsible to remove the heat that was once inside the truck cab. 
A)  Transforms liquid refrigerant into vaporous refrigerant 
B)  Is always located behind the trucks radiator 
C)  Receives cold liquid refrigerant from the compressor 
D)  Is responsible to remove the heat that was once inside the truck cab. D

Question 4

An air conditioning system must be capable of removing heat from the cab of the vehicle at a faster rate than:

Accepted Answer

A)  The radiator 
B)  The intercooler 
C)  The other heat sources infiltrating the cab 
D)  The heat coming in for an open window 
A)  The radiator 
B)  The intercooler 
C)  The other heat sources infiltrating the cab 
D)  The heat coming in for an open window

Question 5

The manifold gauge set is a tool used to:

Accepted Answer

A)  measure the temperature of the refrigerant 
B)  measure the operating pressure of the refrigeration system 
C)  measure the engine intake manifold pressure 
D)  measure the engine exhaust manifold pressure 
A)  measure the temperature of the refrigerant 
B)  measure the operating pressure of the refrigeration system 
C)  measure the engine intake manifold pressure 
D)  measure the engine exhaust manifold pressure

Question 6

An orifice tube is an example of a:

Accepted Answer

A)  Heat exchanger 
B)  Pressure regulating device 
C)  Temperature regulating device 
D)  Responsible to raise the pressure of the refrigerant as it passes through 
A)  Heat exchanger 
B)  Pressure regulating device 
C)  Temperature regulating device 
D)  Responsible to raise the pressure of the refrigerant as it passes through

Question 7

The accumulator used in an air conditioning system:

Accepted Answer

A)  Is used to store vaporous refrigerant 
B)  Is used to prevent liquid refrigerant from returning to the compressor 
C)  Is used to remove oil from the circulation refrigerant 
D)  Is used to store all the refrigerant from the air conditioning system 
A)  Is used to store vaporous refrigerant 
B)  Is used to prevent liquid refrigerant from returning to the compressor 
C)  Is used to remove oil from the circulation refrigerant 
D)  Is used to store all the refrigerant from the air conditioning system

Question 8

Technicians will use an electronic weigh scale to:

Accepted Answer

A)  Weigh the amount of antifreeze in the engine cooling system 
B)  Weigh the amount of engine oil during routine maintenance 
C)  Weigh the amount of refrigerant dispensed into the air conditioning system 
D)  Weigh the output of the vehicles charging system 
A)  Weigh the amount of antifreeze in the engine cooling system 
B)  Weigh the amount of engine oil during routine maintenance 
C)  Weigh the amount of refrigerant dispensed into the air conditioning system 
D)  Weigh the output of the vehicles charging system

Question 9

All technicians working with refrigerant part of the trucks air condition system must be:

Accepted Answer

A)  Trustworthy 
B)  Honest 
C)  Certified 
D)  Careful 
A)  Trustworthy 
B)  Honest 
C)  Certified 
D)  Careful

Question 10

When a vehicles air conditioning is turned on to lower the temperature of the vehicle there is the added benefit of ___________?

Accepted Answer

A)  Dehumidification 
B)  Humidification 
C)  Static discharge removal 
D)  Greater fuel mileage 
A)  Dehumidification 
B)  Humidification 
C)  Static discharge removal 
D)  Greater fuel mileage

Question 11

A vacuum pump is used by a technician to:

Accepted Answer

A)  Remove air from the system after repairs have been performed 
B)  Remove moisture from the system after repairs have been performed 
C)  Remove refrigerant from the air conditioning system 
D)  Both A and B are correct 
A)  Remove air from the system after repairs have been performed 
B)  Remove moisture from the system after repairs have been performed 
C)  Remove refrigerant from the air conditioning system 
D)  Both A and B are correct

Question 12

The receiver drier is a component used to:

Accepted Answer

A)  Turn liquid refrigerant into vaporous refrigerant 
B)  Dry the air the is routed through the evaporator 
C)  Separate and store liquid refrigerant 
D)  Direct only vaporous refrigerant to the TXV 
A)  Turn liquid refrigerant into vaporous refrigerant 
B)  Dry the air the is routed through the evaporator 
C)  Separate and store liquid refrigerant 
D)  Direct only vaporous refrigerant to the TXV

Question 13

Which of the following statements is true?

Accepted Answer

A)  The compressor pumps liquid refrigerant 
B)  The compressor is a dividing point between the high pressure side and the low pressure side. 
C)  The compressor is designed to compress liquid refrigerant 
D)  The compressor can be damaged by pumping refrigerant vapor 
A)  The compressor pumps liquid refrigerant 
B)  The compressor is a dividing point between the high pressure side and the low pressure side. 
C)  The compressor is designed to compress liquid refrigerant 
D)  The compressor can be damaged by pumping refrigerant vapor

Question 14

An antifreeze recycling machine are used:

Accepted Answer

A)  Dispose of used engine coolant 
B)  Remove contaminants from the coolant 
C)  Restore the antifreeze to the properties it was when it was new 
D)  Both B and C are correct 
A)  Dispose of used engine coolant 
B)  Remove contaminants from the coolant 
C)  Restore the antifreeze to the properties it was when it was new 
D)  Both B and C are correct

Question 15

When refrigerant enters the evaporator it:

Accepted Answer

A)  It is under very high pressure 
B)  Is in a purely vaporous state 
C)  Is extremely hot to the touch 
D)  Is a low pressure liquid 
A)  It is under very high pressure 
B)  Is in a purely vaporous state 
C)  Is extremely hot to the touch 
D)  Is a low pressure liquid

A thermostatic expansion valve:

The evaporator used in a truck air conditioning system is:

The condenser is a component that:

An air conditioning system must be capable of removing heat from the cab of the vehicle at a faster rate than:

The manifold gauge set is a tool used to:

An orifice tube is an example of a:

The accumulator used in an air conditioning system:

Technicians will use an electronic weigh scale to:

All technicians working with refrigerant part of the trucks air condition system must be:

When a vehicles air conditioning is turned on to lower the temperature of the vehicle there is the added benefit of ___________?

A vacuum pump is used by a technician to:

The receiver drier is a component used to:

Which of the following statements is true?

An antifreeze recycling machine are used:

When refrigerant enters the evaporator it:

Environmental and Safety Practices

Thermodynamics

Air Conditioning Components: Compressor, Condenser, and Receiver-Drier

Air-Conditioning Components: Metering Devices, Evaporator, Accumulator

Air Conditioning Systems

Service Procedures

Truck Engine Cooling Systems

Climate Controlsupplemental Truck Heatingcooling

Trouble Shooting

Apadsacpu Air Conditioning Control Systems Air Conditioning Protection Unit

Coach Air Conditioning

Truck Trailer Refrigeration Equipment

Truck Trailer Refrigeration Components

Truck Trailer Refrigerant Flow Control

Truck Trailer Refrigeration Electrical Components

Truck Trailer Refrigeration Maintenance Procedures

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Exam 1: History of Hvac

A thermostatic expansion valve:

The evaporator used in a truck air conditioning system is:

The condenser is a component that:

An air conditioning system must be capable of removing heat from the cab of the vehicle at a faster rate than:

The manifold gauge set is a tool used to:

An orifice tube is an example of a:

The accumulator used in an air conditioning system:

Technicians will use an electronic weigh scale to:

All technicians working with refrigerant part of the trucks air condition system must be:

When a vehicles air conditioning is turned on to lower the temperature of the vehicle there is the added benefit of ___________?

A vacuum pump is used by a technician to:

The receiver drier is a component used to:

Which of the following statements is true?

An antifreeze recycling machine are used:

When refrigerant enters the evaporator it:

Environmental and Safety Practices

Thermodynamics

Air Conditioning Components: Compressor, Condenser, and Receiver-Drier

Air-Conditioning Components: Metering Devices, Evaporator, Accumulator

Air Conditioning Systems

Service Procedures

Truck Engine Cooling Systems

Climate Controlsupplemental Truck Heatingcooling

Trouble Shooting

Apadsacpu Air Conditioning Control Systems Air Conditioning Protection Unit

Coach Air Conditioning

Truck Trailer Refrigeration Equipment

Truck Trailer Refrigeration Components

Truck Trailer Refrigerant Flow Control

Truck Trailer Refrigeration Electrical Components

Truck Trailer Refrigeration Maintenance Procedures

Filters