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MRAC
MRAC Set-1
Central Air Conditioning
15

Central Air Conditioning MCQ with Answers

15) What is the purpose of using humidistat in an industrial AC plant?

Purifies air

Add moisture to air

Control humidity of air

Remove moisture from air

Answer is:

Control humidity of air

Central Air Conditioning MCQ with Answers

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Related Central Air Conditioning MCQ with Answers

16) What is the purpose of cooling tower in central AC plant?

Cool the chilled water

Maintain refrigerant flow

Cool the liquid refrigerant

Cool the condenser water

Answer is:

Cool the condenser water

17) Which part of water pump becomes worn out fast?

Bearing

Impeller

Water seal

Shaft sleeve

Answer is:

Shaft sleeve

18) What is the preventive maintenance of cooling tower sump?

Remove sludge

Flush with water

Add HCL to water

Add bleaching powder

Answer is:

Remove sludge

19) Which suction line pressure ensures that the compressor is to be stopped during pump down operation?

3 kg/cm²

5 kg/cm²

0.5 kg/cm²

(- 0.5 kg/cm²)

Answer is:

0.5 kg/cm²

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