WorksheetsControls of Indoor Air Quality
Total questions: 8
Worksheet time: 3mins
Which HVAC component is a likely source of biological contamination?
Thermostat
Drain pans
Ceiling tiles
Fluorescent lights
Which of the following contributes to poor Indoor Air Quality from building materials?
Older plumbing
New carpets or furniture
Fire extinguishers
Metal door handles
What should be done if a case of Legionnaire's disease is suspected?
Shut off the HVAC system permanently
Evacuate the building immediately
Call public health authorities and check building systems
Switch to solar power
Which of the following indicates that the outdoor air ventilation is too low?
Relative humidity below 30%
Air filters changed weekly
Temperature above 25°C
CO₂ levels exceeding 1000 ppm
Elevators can act as _________ and draw contaminants from one floor to another.
Vacuums
Fans
Pistons
Filters
Filters that are the wrong size or loose tracks can lead to _________ air bypassing the filters.
Humidified
Cool
Oxygenated
Unfiltered
The HVAC system operator must have an adequate understanding of the overall __________ and limitations.
Design
Repair methods
Pricing
Usage policy
Poor distribution of ventilation, even with adequate overall rates, may result in occupant complaints such as ____________, headaches, and discomfort.
Insomnia
Drowsiness
Fever
Allergies
