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MRAC Set-1
Refrigerant and Insulation
5

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

Refrigerant and Insulation MCQ with Answers

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Related Refrigerant and Insulation MCQ with Answers

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

9) What is the category of R 502 refrigerant?

Azeotropes

Halocarbon

Hydrocarbon

Organic compounds

Answer is:

Azeotropes

Refrigerant and Insulation MCQ with Answers

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