Ventilation Quiz

What is the purpose of a mechanical ventilation system?

• To control indoor environment

• To remove heat and dirty air

• To get enough air (quality and quantity)

• All of the above

Which type of whole-house mechanical ventilation system creates an under pressure in the building?

• Exhaust System

• Supply System

• Balanced System

• Plenum System

What is the advantage of an exhaust ventilation system?

• Good control of ventilation capacity

• Possibility of extracting heat from exhaust air

• Possibility of cleaning the air

• All of the above

In a supply system, how is air supplied to the living spaces?

• Through ventilation openings

• Through windows or shafts

• Through ductwork

• Through natural air exhaust

What is the benefit of a balanced ventilation system?

• Improved indoor air quality

• Improved comfort

• Improved health

• All of the above

What is the purpose of a plenum in a ventilation system?

• To facilitate air circulation

• To provide pathways for airflow

• To house equipment

• All of the above

Which type of fan is best suited for situations where no great resistance to airflow has to be overcome?

• Propeller fans

• Centrifugal fans

• Axial flow fans

• All of the above

What are the advantages of good ventilation?

• Reduction in humidity levels

• Removal of tiredness and headaches

• Elimination of radon problems

• All of the above

What is the SI unit used to determine ventilation in a building?

• Air Change per Hour (ACH)

• Volumetric flow rate (m3/sec)

• Both ACH and m3/sec

• None of the above

What is the formula to calculate air change rate?

• Q = NV/3600

• Q = (N x V)/3600

• Q = (N x V)/60

• Q = (N x V)/600