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MRAC
MRAC Set-1
Refrigerant and Insulation
16

Refrigerant and Insulation MCQ with Answers

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

Refrigerant and Insulation MCQ with Answers

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Related Refrigerant and Insulation MCQ with Answers

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

19) What does the number 4 of R 134a indicate?

Number of hydrogen atoms

Number of chlorine atoms

Number of carbon atoms

Number of fluorine atoms

Answer is:

Number of fluorine atoms

20) Which substance absorbs heat and directly changes its state from solid to vapour?

Ice

Dry ice

Primary refrigerants

Secondary refrigerants

Answer is:

Dry ice

Refrigerant and Insulation MCQ with Answers

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