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MRAC
MRAC Set-1
Central Air Conditioning
18

Central Air Conditioning MCQ with Answers

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

Central Air Conditioning MCQ with Answers

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Related Central Air Conditioning MCQ with Answers

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

20) Which device is used to measure the static and total pressure of air in ducting systems?

Pitot tube

Gauge manifold

Pressure gauge

Compound gauge

Answer is:

Pitot tube

Which device is used to measure the static and total pressure of air in ducting systems?

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

Erosive

Galvanic

Reactive

Non corrosive

Answer is:

Non corrosive

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

Compound gauge

Oil pressure gauge

High pressure gauge

Water pressure gauge

Answer is:

Compound gauge

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