In the past the most popular method used to provide ventilation in a residence or small building has been by:
a. Mechanical ventilation
b. Natural ventilation
c. Forced air
d. Convection
e. Unit ventilator
Answer: B
In the past the most popular method used to provide ventilation in a residence or small building has been by:
a. Mechanical ventilation
b. Natural ventilation
c. Forced air
d. Convection
e. Unit ventilator
Answer: B