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MRAC Set-1
HVAC Plant
24

HVAC Plant MCQ with Answers

24) What is measured by Anemometer?

Velocity of air

Direction of air-flow

Total pressure of air

Static pressure of air

Answer is:

Velocity of air

HVAC Plant MCQ with Answers

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Related HVAC Plant MCQ with Answers

25) Which psychrometer uses battery operated small fan?

Sling psychrometer

Aspirating psychrometer

Laboratory psychrometer

Exhausting psychrometer

Answer is:

Aspirating psychrometer

26) What is the velocity pressure of air in a duct if the total pressure and static pressure are known?

Sum of static and total pressures

Sum of dynamic and total pressures

Difference in static and total pressures

Difference in dynamic and total pressures

Answer is:

Difference in static and total pressures

27) What is the volume of air passed at the outlet of a rectangular duct whose area of cross section is 1m² and the air velocity by an anemometer is 10m/min?|

5 m³

10 m³

15 m³

20 m³

Answer is:

10 m³

28) How the power consumed by the motor varies with its speed in VFD?

Cube of its speed

Square of its speed

No change with speed

Inversely proportional to its speed

Answer is:

Cube of its speed

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