The automotive air-conditioning cycle starts with the ______.

Select one:

• Compressor

• Condenser

• Restriction

• Evaporator

In the automotive air-conditioning system, low pressure causes the contacts in the low-pressure switch to open and break the electrical supply to the air-conditioning compressor clutch, stopping its operation.

Select one:

• True

• False

The oil in the automotive air-conditioning compressor is just as important as oil in an automotive engine.

Select one:

• True

• False

The air-conditioner is an open loop system.

Select one:

• True

• False

The A/C compressor clutch is engaged and disengaged by using:

Select one:

• hydraulic pressure.

• vacuum.

• compressed air.

• electromagnetism.

What type of compressor uses two interwoven scrolls?

Select one:

• Variable displacement compressor

• Sanden scroll-type compressor

• Rotary vane compressor

• Sanden wobble plate compressor

If refrigerant leaks out of the A/C system, the low-pressure switch opens to protect the system from:

Select one:

• overpressure.

• underpressure.

• a lack of refrigerant.

• a lack of lubricant.

Technician A says that some A/C compressors use axial pistons. Technician B says refrigerant is drawn into the A/C compressor's cylinder through the sectional bypass valves. Who is correct?

Select one:

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

The purpose of the A/C compressor is to:

Select one:

• change a low-pressure liquid refrigerant to a high-pressure liquid refrigerant.

• change a low-pressure gas refrigerant to a high-pressure liquid refrigerant.

• change a low-pressure liquid refrigerant to a high-pressure gas refrigerant.

• change a low-pressure gas refrigerant to a high-pressure gas refrigerant

Mineral oil is clear to light yellow, and PAG oil is usually a light ________ color.

Select one:

• Yellow

• Green

• Blue

• Brown