7290-157 L8 Air Conditioning

Is it correct to say that when we open the door of a heated room we let the cold in?

• True

• False

Heat always flows from hot to cold.

• True

• False

A gas has to lose heat in order to change from a gas to a liquid.  Is this true or false?

• True

• False

What material would the evaporator and condenser coils of an air conditioning system be made from?

• Rubber tube

• Metal tube

• Nylon tube

• Glass tube

Which part, in an air conditioning system, turns the low pressure vapour into high pressure vapour?

• Compressor

• Condenser

• Evaporator

• Fan

Where in an air conditioning system does the high pressure vapour turn to high pressure liquid?

• Compressor

• Condensor

• Evaporator

• Fixed orifice tube

Where in an air conditioning system does high pressure liquid turn to low pressure liquid?

• Compressor

• Condenser

• Fixed orifice tube

• Evaporator

Where in an air conditioning system does the liquid absorb heat?

• Condeser

• Compressor

• Fixed orifice tube

• Evaporator

In which part of an air conditioning system does heat leave the system?

• Compressor

• Condenser

• Evaporator

• Thermal expansion valve

What is the purpose of the fixed orifice tube?

• To raise the temperature

• To increase the speed of flow

• To reduce the pressure

• To change the vapour into a liquid