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MRAC Set-1
HVAC Plant
12

HVAC Plant MCQ with Answers

12) Which process decreases the dry bulb temperature of air at constant specific humidity?

Humidification of air

Sensible cooling of air

Sensible heating of air

Dehumidification of air

Answer is:

Sensible cooling of air

HVAC Plant MCQ with Answers

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Related HVAC Plant MCQ with Answers

13) What is the direction of airflow delivered in a centrifugal blower?

Parallel to the shaft

Perpendicular to the shaft

Inclined throw of air vertically

Inclined throw of air horizontally

Answer is:

Perpendicular to the shaft

14) Which property is considered for a temperature range in selecting a lubricant oil?

Natural

Artificial

Viscosity

Cost effective

Answer is:

Viscosity

15) Which device controls the air flow in ducting system?

Grille

Damper

Register

Diffuser

Answer is:

Damper

16) What is phenotherm?

A ducting clamp

An insulation material

A chemical substance

Temperature measuring device

Answer is:

An insulation material

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