Chapter 35 Humidity & Humidifiers

Question 1

Air that is at a higher temperature:

a) Causes floors to become squeaky
b) Will have greater static electricity than colder air
c) Can absorb more moisture than cooler air
d) Is always considered to be high pressure

Answer 1

c) Can absorb more moisture than cooler air

Question 2

The ideal relative humidity during cold weather:

a) is above 40%
b) is just below the point where condensation will develop on windows
c) makes the internal temperature seem colder than it really is
d) is the same for all buildings within a local area

Answer 2

b) is just below the point where condensation will develop on windows

Question 3

A humidifier that makes use of the pressure difference between the supply and return plenum is the:

a) Bypass type
b) Power type
c) Pan type
d) Atomizing type

Answer 3

a) Bypass type

Question 4

An air washer is installed on the suction side of the fan to:

a) Allow the air to be heated as well dehumidified
b) Allow the air to be cooled as well as humidified
c) Keep the pressure below atmospheric to prevent water leakage through joints
d) Allow the water to be recirculated

Answer 4

c) Keep the pressure below atmospheric to prevent water leakage through joints