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MRAC Set-1
HVAC Plant
35

HVAC Plant MCQ with Answers

35) Which fan is used to handle the direction of air flow 90 Degree away from the inlet?

Axial propeller fan

Centrifugal blower fan

Tube axial propeller fan

Vane axial propeller fan

Answer is:

Centrifugal blower fan

HVAC Plant MCQ with Answers

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Related HVAC Plant MCQ with Answers

36) Why the capacitor is tested inside a box or case?

Explodes safely

Erodes the test kit

Corrodes the test kit

Releases poisonous gas

Answer is:

Explodes safely

37) Why the AHU outlet is connected to supply duct with canvas material?

Quick replacement

Low installation cost

Low maintenance cost

Avoid vibration of air transmission

Answer is:

Avoid vibration of air transmission

38) Why the crankcase heater is energised for compressor during the shut down period of AC plant?

Increase viscosity of crankcase oil

Decrease viscosity of crankcase oil

Increase miscibility of oil with refrigerant

Prevent oil foaming on restarting compressor

Answer is:

Prevent oil foaming on restarting compressor

39) What is the equivalent of 1 mm of Hg in terms of microns?

500

1000

1500

2000

Answer is:

1000

HVAC Plant MCQ with Answers

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