One of the advantages of a common exhaust duct system used for ventilation in a large building is:
a. No fan to maintain
b. The building can be maintained at a slight negative pressure at all times.
c. Only one fan to maintain
d. Windows can be eliminated
e. No power is required
Answer: C
Learn More :
Power Engineering Chapter 102
- Mechanical filters can be divided into two broad classes:
- Natural ventilation is improved by the use of a roof
- Electronic air cleaners are divided into ____________ air cleaners.
- Which one of the following air cleaning devices can be used for the removal of gases and vapour?
- Actual ventilation rates may vary per person from:
- Which of the following Is not an airborne contaminant?
- In a mechanical air intake, natural exhaust ventilation system, the pressure in the building is:
- Ultraviolet light is used to remove _____ from the air.
- In the past the most popular method used to provide ventilation in a residence or small building has been by:
- Viscous filters are highly efficient in the removal of:
- Proper ventilation makes a building comfortable and habitable for its occupants. Which of the following is NOT a function of effective ventilation?
- Electrostatic filters are highly efficient in the removal of:
- The advantage of a mechanical ventilation system is:
- Activated carbon will absorb odours and objectionable gases by up to _____ of its own weight before requiring replacement.
- The activated carbon used for absorbing odours can often be reactivated