HVAC PLANT - Practice Mode

1) Which part of electronic filter removes tobacco smoke and odours?

Pre filter Electrodes Charcoal filter Static electric field

Correct Answer: Charcoal filter

2) What is the purpose of air filter?

Cool air Circulate air Ensure clean air Improve performance

Correct Answer: Ensure clean air

3) How the space between the false ceiling and the building main ceiling is used in handling of air in central AC plant?

Exhaust duct Fresh air duct Return air duct Supply air duct

Correct Answer: Return air duct

4) Which system maintains indoor air quality by adding fresh air and conditioned air to offset heating or cooling loads?

Refrigeration system Air distribution system Electrical control system Refrigerant control system

Correct Answer: Air distribution system

5) 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

Correct Answer: Centrifugal blower fan

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