Automotive Air Conditioning Principals

In a typical system, within which component would the evaporation of refrigerant take place?

• Condenser

• Evaporator

• Compressor

• Expansion Valve

If contamination within an air conditioning system is suspected and a flushing procedure is to be carried out what component should also be changed?

• Compressor

• Receiver Drier

• Thermal Expansion Valve

• Condenser

Where would you expect to find a high pressure liquid within an AC system?

• Between the compressor and the Thermal Xpansion Valve

• Between the Thermal Xpansion Valve and the Evaporator

• Between the Condenser and the Thermal Xpansion Valve

• Between the Condenser and the Thermal Xpansion Valve

The Compressor discharge hose uses a _____________ diameter than the suction hose.

• larger

• equal

• smaller

• wider

The air conditioning compressor _____________ vaporized refrigerant and allows it to flow to the condenser.

• pressurizes

• evaporates

• condenses

• filters

Where does the low pressure liquid become a gas?

• Evaporator

• Condenser

• Compressor

• Expansion Valve

The air conditioning compressor acts as the ________ of the system, keeping refrigerant circulating during air conditioning system operation.

• Pump

• Fan

• Filter

• Thermostat

When leaving the compressor what state is the refrigerant in?

• Low Pressure, Low Temperature gas

• High Pressure, High Temperature gas

• Liquid refrigerant

• High Pressure, Low Temperature gas

Where is the Thermal Xpansion Valve installed in the refrigeration system?

• At the evaporator inlet fittings

• At the condenser outlet

• In the compressor unit

• At the expansion tank

Adding pressure to a liquid _______ its boiling point. Adding pressure to a vapor _______ its temperature.

• lowers, lowers

• raises, lowers

• lowers, raises

• raises, raises