Central Air Conditioning MCQ with Answers

Central Air Conditioning MCQ with Answers

21) Why the stainless-steel metal is used to make evaporator in ice plant?

Answer is:

Non corrosive

22) Which gauge is connected to the AC plant system before doing pump down operation?

Answer is:

Compound gauge

23) Why the glass wool insulation is avoided in ducts?

Answer is:

Allows vapour transmission

Explanation:

Glass wool insulation is avoided in ducts because glass wool Allows vapour transmission.

24) What is the effect of scale formation inside the tubes of chiller in industrial AC plant?

Answer is:

Reduce heat transfer

25) Which parameter is checked if the air flow in supply duct is reduced in central AC plant?

Answer is:

Blower motor ampere/speed