TACN- KTML- MULTIPLE CHOICE

Because of their strong influence on global warming and the impact of HCFCs on the ________, refrigerants having minimal impact on the environment, are being considered.

       

• vapor

• water

• refrigerant 

• ozone layer 

Alternatives that would eventually take the place of halogenated refrigerants would be required to have ________ ODP and low GWP.

    

• high    

• low   

• zero

• big

Mechanical refrigeration is accomplished by continuously____________, evaporating, and condensing a fixed supply of refrigerant in a closed system.

• absorbing

• circulating

• compressing

• occuring

The accumulator is designed to ­­­­­­­­­­­­­­­­­_________ the compressor

    

• stop

• prevent

• control

• protect

Evaporation occurs at a low temperature and low pressure while ___________occurs at a high temperature and high pressure

   

• condensation 

• circulation 

• compression

• condensating

The _______ pumps the refrigerant from the evaporator through the accumulator in the system.

    

• condenser  

• evaporator

• compressor

• protector

In the condenser, __________ is removed from the gas, which then condenses and becomes a high-pressure liquid.

  

• heat

• temperature

• vapor 

• refregerant

When the desired air temperature is reached, the thermostat will break the electrical ________to the compressor motor and stop the compressor

   

• circuit 

• current

• conductor

• cable

The________________ compresses the refrigerant gas and increases its temperature and pressure.

  

• vapor    

• fridge   

• compressor 

• protector

Refrigerant takes the heat from inside of the________ and transports it to the outside.

    

• compressor  

• evaporator 

• condenser 

• refrigerator