Why is ventilation provided in buildings?

• To increase humidity

• To provide fresh air and remove stale air

• To block natural light

• To enhance sound insulation

What are the main types of ventilation systems in buildings?

• Electrical and manual

• Natural and mechanical

• Solar and wind-powered

• Automated and semi-automated

Which of the following is a benefit of having a ventilation system in buildings?

• Increased energy consumption

• Reduced air quality

• Improved indoor air quality

• Increased noise pollution

What is a disadvantage of some ventilation systems?

• Increased property value

• Enhanced security

• Can be energy consuming

• Reduces maintenance costs

What is one of the primary reasons for ventilating a building?

• To provide air for respiration.

• To increase the electrical conductivity in the air.

• To enhance the natural light in the building.

• To improve the structural integrity of the building.

Which of the following is NOT a purpose of building ventilation?

• Control the carbon dioxide content in the air.

• Dispose of odours, dust, smoke, etc.

• Remove stagnant air.

• Increase the humidity levels artificially.

How does proper ventilation affect moisture content in a building?

• It increases moisture content.

• It controls moisture content.

• It has no effect on moisture content.

• It eliminates all moisture.

What is a natural method by which ventilation is achieved according to the text?

• The wind effect

• Supply systems

• Balanced ventilation systems

• Extraction systems

Which effect describes the displacement of warm air by cold air to achieve natural ventilation?

• The wind effect

• The stack effect

• Supply systems

• Balanced ventilation systems

What type of ventilation system is used in kitchens and toilets?

• Supply systems

• The stack effect

• The wind effect

• Extraction systems