HAC101 Week 8 Flashcard

Front

If the pressure gauges read low pressure on the high side, high pressure on the low side, or about equal pressures, what might it indicate?

Back

The compressor is not working fully.

Front

The most common A/C system complaint that brings vehicles into the shop is the A/C system:

Back

not performing.

Front

A cloudy day will decrease the heat load on a vehicle, increasing the air-conditioning system's efficiency and possibly giving the impression that the system is cooling fine. True or False?

Back

True

Front

If the low side of an air-conditioning system reads as a vacuum, what does it indicate?

Back

there is a blockage in the low side of the system that is not allowing refrigerant to pass.

Front

When both the gauges of an air-conditioning system read low pressure, what might be the problem with the A/C? Options: The system may be low on refrigerant, The compressor is not working, There is a blockage in the low side of the system that is not allowing refrigerant to pass, There is a blockage on the high side or an airflow restriction across the condenser

Back

The system may be low on refrigerant

Front

The automotive air-conditioning cycle starts with the ______. Select one: Compressor, Condenser, Restriction, Evaporator

Back

Compressor

Front

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

Back

True

Front

The air-conditioner is an open loop system. Select one: True, False

Back

False

Front

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

Back

electromagnetism.

Front

What type of compressor uses two interwoven scrolls?

Back

Sanden scroll-type compressor