AIR CONDITIONING

Front

In a typical system, within which component would the evaporation of refrigerant take place? Options: Condenser, Receiver dryer, Evaporator, Compressor

Back

Evaporator

Front

What does MAC stand for?

Back

Mobile Air Conditioning

Front

Where would you expect to find a high pressure liquid within an AC system? Options: Between the compressor and the TXV, Between the TXV and the Evaporator, Between the compressor and the condenser, Between the Condenser and the TXV

Back

Between the Condenser and the TXV

Front

How would you know the air con gas has been fully recovered from the system? Options: The gauge on the high pressure side reads a positive pressure, The gauge on the low pressure side reads a negative pressure, Both gauges read zero pressure at the end of the recovery process, Both gauges read a positive pressure of 20 Bar at the end of the recovery process

Back

Both gauges read zero pressure at the end of the recovery process

Front

Which of the following would be carried out to confirm a system contained no refrigerant? Options: Press the service port valve on the low pressure side and listen for a gas leak, Connect the gauges to both high and low pressure ports to confirm a vacuum is present, Connect the Air Conditioning equipment and carry out a full recovery, Connect the gauges to both high and low pressure ports to confirm no pressure is present

Back

Connect the gauges to both high and low pressure ports to confirm no pressure is present

Front

What type of refrigerant is R134a?

Back

HFC

Front

What does COSHH stand for?

Back

Control of Substances Hazardous to health

Front

What does a TXV do?

Back

It controls the quantity of refrigerant entering the evaporator.

Front

If contamination within an air conditioning system is suspected and a flushing procedure is to be carried out what component should also be changed? Options: Compressor, Receiver Drier, TXV, Condenser

Back

Receiver Drier

Front

What are the impacts on the environment of fluorinated greenhouse gases? Options: Contributes to the formulation of acid rain, Contributes to the global warming, Mixes with the Nitrogen within the atmosphere to create a toxic substance, Nox, Has little or no detrimental effect

Back

Contributes to the global warming