Question 1

What is the drying agent in the receiver-drier or accumulator known as?

Accepted Answer

The answer of What is the drying agent in the...

Question 2

On a system that uses an accumuator what type of metering device is used?

Accepted Answer

A)  hot gas bypass 
B)  thermostatic expansion valve 
C)  fixed orifice tube 
D)  suction valve

Question 3

There is a direct relationship between temperature and pressure in an automotive air conditioning system.

Accepted Answer

A) True 
 B)False

Question 4

Accumulators are used with expansion valve systems.

Accepted Answer

A) True 
 B)False

Question 5

What is the easiest method of determining if you have an expansion valve/receiver-dryer or an orifice tube/accumulator system?

Accepted Answer

The answer of What is the easiest method of determining...

Question 6

Technician A  says the compressor is the dividing line of the refrigeration system,low- to high-side.Technician B  says the metering device is the dividing line of the refrigeration system,low- to high-side.Who is correct?

Accepted Answer

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

Question 7

Technician A  says Schrader-type valves on refrigerant system service fittings self-seal when the manifold hoses are removed.Technician B  says HFC-134a manifold hoses use quick disconnect couplers for attaching to the refrigerant system service fittings.Who is correct?

Accepted Answer

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

Question 8

All of the following statements about the air conditioning circuit are true,EXCEPT:

Accepted Answer

A)  Heat transfer is accomplished by two pressure and two temperature systems. 
B)  Any time there is a pressure change, there is a temperature change. 
C)  A pressure-temperature change can cause a change of state. 
D)  On the low-pressure side, the change is from a vapor to a liquid.

Question 9

What are the names of the basic refrigerant system components?

Accepted Answer

The answer of What are the names of the basic...

Question 10

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

Accepted Answer

A) True 
 B)False

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

What is the drying agent in the receiver-drier or accumulator known as?

On a system that uses an accumuator what type of metering device is used?

There is a direct relationship between temperature and pressure in an automotive air conditioning system.

Accumulators are used with expansion valve systems.

What is the easiest method of determining if you have an expansion valve/receiver-dryer or an orifice tube/accumulator system?

Technician A says the compressor is the dividing line of the refrigeration system,low- to high-side.Technician B says the metering device is the dividing line of the refrigeration system,low- to high-side.Who is correct?

Technician A says Schrader-type valves on refrigerant system service fittings self-seal when the manifold hoses are removed.Technician B says HFC-134a manifold hoses use quick disconnect couplers for attaching to the refrigerant system service fittings.Who is correct?

All of the following statements about the air conditioning circuit are true,EXCEPT:

What are the names of the basic refrigerant system components?

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