Unit 66 sections 5-8

Fixed orifice tube automotive air-conditioning systems use a(n) ______ to ensure that a pure gas is delivered to the compressor.

• Thermal expansion valve

• Evaporator

• Condenser

• Accumulator

The fixed orifice tube in an air-conditioning system is a metering device that forces a high-pressure:

• Gas into a low-pressure gas.

• Gas into a low-pressure liquid.

• Liquid into a low-pressure liquid.

• Liquid into a low-pressure gas.

Technician A states that the TXV is a manual-adjusting restriction. Technician B states that TXVs can be internally or externally compensated. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

The ________ is installed on the low-pressure refrigerant line or the accumulator to turn the air-conditioning clutch on and off at certain pressures.

• Pressure cycling switch

• Fixed orifice tube

• Accumulator

• Variable-pressure cycling switch

_______ type automotive air-conditioning systems use a receiver filter drier to ensure that a pure liquid refrigerant is delivered to the restriction.

• Fixed orifice tube

• Thermal expansion valve

• Low-pressure cycling

• High-pressure cycling

Technician A states that the TXV is a manual-adjusting restriction. Technician B states that TXVs can be internally or externally compensated. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

The ________ is installed on the low-pressure refrigerant line or the accumulator to turn the air-conditioning clutch on and off at certain pressures.

• Pressure cycling switch

• Fixed orifice tube

• Accumulator

• Variable-pressure cycling switch

Fixed orifice tube automotive air-conditioning systems use a(n) ______ to ensure that a pure gas is delivered to the compressor.

• Thermal expansion valve

• Evaporator

• Condenser

• Accumulator

The fixed orifice tube in an air-conditioning system is a metering device that forces a high-pressure:

• Gas into a low-pressure gas.

• Gas into a low-pressure liquid.

• Liquid into a low-pressure liquid.

• Liquid into a low-pressure gas.

_______ type automotive air-conditioning systems use a receiver filter drier to ensure that a pure liquid refrigerant is delivered to the restriction.

• Fixed orifice tube

• Thermal expansion valve

• Low-pressure cycling

• High-pressure cycling