Ventilation And Air Filters

Question 1

Living organisms that must be removed from the air are:
Insects and pollen
Bacteria and insects 
Bacteria and spores 
Pollen and spores

Answer 1

Bacteria and spores

Question 2

The air velocity through a viscous filter can be______ higher than with dry filters:
2.5 m/s 500 ft/ min

Answer 2

2.5 m/s 500 ft/ min

Question 3

The carbon in an odour absorber may be reactive by heating it to_______ to drive out the absorbed gases:
250 degrees 480 Fahrenheit
538 degrees 1000 Fahrenheit

Answer 3

538 degrees 1000 Fahrenheit

Question 4

Best filters available for ventilation system lint removal are:
Charged media
Dry
Viscous 
Activate alumina chemisorbant

Answer 4

Dry

Question 5

What precautions must be taken when ultraviolet lighting for sterilizing air in ventilation systems:
Correct supply voltage
Safety glasses
Sufficient number of units
Positioning the lamps so they cannot hit occupants

Answer 5

Positioning the lamps so they cannot hit occupants