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MRAC
MRAC Set-1
Refrigerant and Insulation
4

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%

Refrigerant and Insulation MCQ with Answers

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Related Refrigerant and Insulation MCQ with Answers

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

8) What is the ozone depleting potential of R 134a Refrigerant?

0

1

2

3

Answer is:

0

Refrigerant and Insulation MCQ with Answers

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