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MRAC
MRAC Set-1
Refrigerant and Insulation
3

Refrigerant and Insulation MCQ with Answers

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

Total heat

Latent heat

Specific heat

Sensible heat

Answer is:

Latent heat

Refrigerant and Insulation MCQ with Answers

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Related Refrigerant and Insulation MCQ with Answers

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%

Answer is:

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

Answer is:

Miscible with HFCs

6) Which insulating material is poured as liquid?

Glass Wool

Cork Board

Wood Shave

Poly Urethane Foam (PUF)

Answer is:

Poly Urethane Foam (PUF)

7) Which international agency standardises the numbering system for identifying refrigerants?

ASHRAE

ISHRAE

DW142

ISO

Answer is:

ASHRAE

Refrigerant and Insulation MCQ with Answers

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