Chapter 8

Question 1

Living organisms that must be removed from the air are
A. Insects and pollen
B. Bacteria and insects
C. Bacteria and spores
D. Pollen and spores

Answer 1

C

Question 2

The air velocity through a viscous filter can be blank higher than with dry filters.
a. 2.5 m/s [500 feet/min]
b. 4 m/s [800 feet/min]
c. 4.5 m/s [900 feet/min]
d. 7.5 m/s [1500 feet/min]

Answer 2

A

Question 3

The carbon in an odor absorber may be reactivated by heating it to blank to drive out the absorbed gases.
A. 250°C-[480°F]
B. 538°C-[1000°F]
C. 425°C-[800°F]
D. 175°C-[350°F]

Answer 3

B

Question 4

The best filters available for ventilation system lint removal are
A. Charged Media Electronic
B. Dry
C. Viscous Impingement
D. Activated Alumina, Chemisorbent

Answer 4

B

Question 5

What precaution must be taken when using ultraviolet lighting for sterilizing air in ventilation systems?
A. Correct supply voltage.
B. Safety glasses.
C. Sufficient number of units.
D. Positioning the lamps so they cannot hit occupants.

Answer 5

D