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MRAC
MRAC Set-1
Refrigerant and Insulation
14

Refrigerant and Insulation MCQ with Answers

14) Where does the ozone layer exist in atmosphere?

Mesosphere

Stratosphere

Ionosphere

Exosphere

Answer is:

Stratosphere

Refrigerant and Insulation MCQ with Answers

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Related Refrigerant and Insulation MCQ with Answers

15) Which is the inorganic refrigerant?

R 170

R 500

R 630

R 717

Answer is:

R 717

16) How the refrigerants are classified based on heat absorption by latent and sensible heat?

Primary and secondary

Organic and inorganic

Zeotropic and azeotropic

Halocarbons and hydrocarbons

Answer is:

Primary and secondary

17) Which refrigerant is inactive to ozone layer?

R 12

R 13

R 22

R 134a

Answer is:

R 134a

18) Which is the numerical designation of ammonia refrigerant?

700 + ( Molecular mass of NH3) = 717

700 + (Molecular mass of NH3) = 718

700 + (Molecular mass of NH3) = 719

700 + (Molecular mass of NH 3) = 720

Answer is:

700 + ( Molecular mass of NH3) = 717

Refrigerant and Insulation MCQ with Answers

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