HVAC Plant MCQ with Answers

HVAC Plant MCQ with Answers

11) Which process increases the specific humidity of air at constant dry bulb temperature?

Answer is:

Humidification of air

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

Answer is:

Sensible cooling of air

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

Answer is:

Perpendicular to the shaft

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

Answer is:

Viscosity

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

Answer is:

Damper