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MRAC
MRAC Set-1
Central Air Conditioning
3

Central Air Conditioning MCQ with Answers

3) Which instrument is used to measure the total pressure in an air duct?

Hygrometer

Velocimeter

Anemometer

Pitot tube manometer

Answer is:

Pitot tube manometer

Which instrument is used to measure the total pressure in an air duct?

Central Air Conditioning MCQ with Answers

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Related Central Air Conditioning MCQ with Answers

4) What is meant by total pressure in a duct?

Velocity pressure - static pressure

Static pressure + velocity pressure

Velocity pressure + suction pressure

Suction pressure + discharge pressure

Answer is:

Static pressure + velocity pressure

5) Which device controls the moisture in AC room air?

Humidistat

Hydrometer

Hygrometer

Anemometer

Answer is:

Humidistat

6) Which part of a central AC system cannot be repaired after pump down operation?

Condenser

Evaporator

Liquid receiver

Expansion device

Answer is:

Liquid receiver

7) Which device is installed in ducts to control air flow?

Grille

Damper

Diffuser

Register

Answer is:

Damper

Central Air Conditioning MCQ with Answers

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