REFRIGERANT AND INSULATION - Practice Mode

1) Which property is desirable for an ideal refrigerant?

High boiling point High freezing point High specify volume High latent heat value

Correct Answer: High latent heat value

2) What is the category of R 290 refrigerant?

Halocarbons Azeotropes Hydrocarbons Organic compounds

Correct Answer: Hydrocarbons

3) What type of heat is absorbed by primary refrigerant?

Total heat Latent heat Specific heat Sensible heat

Correct Answer: Latent heat

4) How much is the maximum capacity of refrigerant to be filled in a returnable service cylinder?

Up to 95% Up to 90% Up to 85% Up to 80%

Correct Answer: Up to 80%

5) What is the desirable property of POE lubricant?

Hygroscopic Miscible with HFCs Forms acid with moisture Toxic gas produced during brazing

Correct Answer: Miscible with HFCs

Previous Question Set Back to Question Sets Next Question Set

Try Another Topic

Try Another Quiz