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Indoor Air Fundamentals > Air Quality > Flashcards

Air Quality Flashcards

1
Q

IAQ is _____ _____ _____.

A

Indoor Air Quality

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2
Q

IAQ includes the status of indoor air as measured by temperature, humidity, fresh airflow, pollutants, and _____.

A

chemicals

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3
Q

ASHRAE Standard 62 covers _____.

A

Equipment Requirements
System Requirements
Minimum Ventilation Rates

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4
Q

Standard 62.1 ties ventilation rates to the number of building _____ in a given space.

A

occupants

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5
Q

A substance that is in some way a detriment to comfort, health, and a desirable environment is called a(n) _____.

A

pollutant

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6
Q

Small particles that become temporarily airborne from wind, a sudden earth disturbance, or mechanical work on a solid are referred to as _____.

A

dust

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7
Q

Small particulates suspended in the air formed by the condensation and solidification of gaseous materials is referred to as _____.

A

fumes

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8
Q

The term for solid particles (0.1-13 microns) carried into the atmosphere by gaseous products of incomplete combustion is _____.

A

smoke

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9
Q

The term for simple, single-cell microorganisms that are responsible for many diseases is _____.

A

bacteria

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10
Q

The term for a minute fungi whose spores may be able to cause illness is _____.

A

mold

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11
Q

The term for small particles released by plants as part of their reproductive cycle is _____.

A

pollen

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12
Q

The naturally occurring mineral that is now a known carcinogen but was formerly used widely in construction and as insulation is _____.

A

asbestos

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13
Q

An odorless, colorless gas that replaces oxygen in red blood cells and is produced by incomplete combustion of fuel describes _____.

A

carbon monoxide

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14
Q

A common gaseous pollutant produced by burning coal, gas, or oil that may contain carcinogens describes _____.

A

Sulfur Dioxide

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15
Q

An odorless, tasteless, radioactive, inert gas in soil and rocks that can accumulate in homes through cracks describes _____.

A

Radon (Rn)

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16
Q

A nontoxic gas that tends to build up in spaces with poor ventilation and can cause fatigue, headaches, and discomfort in higher concentrations describes ______.

A

Carbon Dioxide

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17
Q

An ozone concentration of _____ parts per million (ppm) is generally considered the maximum level permissible for an eight-hour exposure.

A

0.1

18
Q

MERV is the Minimum Efficiency ____.

A

Rating

19
Q

In order to maintain adequate ventilation and filtration, a building’s HVAC system must be designed in accordance with ASHRAE standards _____.

A

62.1 and 129

20
Q

When bioaerosols and airborne particulates are the source of IAQ problems, the best solution may be to install _____.

A 
High efficiency (MERV-13 or higher) filters
Germicidal light on the evap coil
21
Q

When volatile organic compounds (VOCs) are the source of IAQ problems, the best solution may be to install _____.

A

Heat Recovery Ventilator (HRV)
Energy Recovery Ventilator (ERV)
An air purification system

22
Q

When moisture and increased fungal growth are the source of IAQ problems, the best solution may be to install _____.

A

Humidifier and Dehumidifiers

23
Q

When stale air and too much carbon dioxide are the source of IAQ problems, the best solution may be to _____.

A

HRV
ERV
Replace filters regularly

24
Q

When to much carbon monoxide is the source of IAQ problems, the best solution may be to _____.

A

Repair furnace or gas appliance
Do not operate vehicles or gas powered equipment in an attached garage
Install a CO detector

25
Q

Sick building syndrome (SBS) can usually be confirmed when at least _____% or more of the building’s occupants complain of drowsiness, fatigue, eye and skin irritations, or respiratory problems.

A

20

26
Q

Multiple chemical sensitivity (MCS) is a condition of sensitivities and adverse reactions to low levels of ____.

A

Chemicals
Bioaerosols
Other Irritants

27
Q

Air filter efficiency is measured by the following three factors _____.

A

Total weight of dirt collected
Size of the smallest particle that can be removed
Degree of discoloration on the exhaust side of the filter being tested

28
Q

Air filters and electronic air cleaners are rated according to ASHRAE Standard _____.

A

52.2

29
Q

(T/F) A manufacturer’s filter efficiency rating usually refers to an air filter’s ability to capture only large particles (3.0 - 10.0 microns)

A

True

30
Q

In most residential applications, disposable filters have a thickness of ____.

A

1 inch

31
Q

Disposable air filters are often made from ____.

A

fiberglass

32
Q

The activated charcoal in a _____ filter will absorb as much as 50% of its weight in foreign gases.

A

carbon

33
Q

Air filters should be changed at approximately ____% of their design final resistance.

A

80

34
Q

A ventilation system is usually designed to allow the air filter pressure drop to be about _____ of the total pressure drop.

A

1/4

35
Q

The measure of the ability of an air filter to remove atmospheric dust by evaluating the flow rates on both sides of the air filter and also the quantity of material it captures describes _____.

A

Atmospheric Dust Spot Efficiency

36
Q

The measure of an air filter’s ability to remove man-made dust from test air describes _____.

A

Synthetic dust weight arrestance

37
Q

An advanced technique used to measure air filter performance in which extremely accurate equipment is used to count the number of particles trapped and also classify each based on size describes ____.

A

Fractional Efficiency Test

38
Q

The air filter efficiency test that uses small, white, sample filters to collect testing particles from the air streams ahead of the test filter describes _____.

A

DOP HEPAP Method

39
Q

Wavelengths within the _____ UV band of light are effective germicidal light wavelengths.

A

C

40
Q

A natural exchange of air through leakage into a building is known as _____.

A

infiltration

41
Q

A natural passage of air leaving a building through doors, windows, and other construction joints is referred to as _____.

A

exfiltration

Indoor Air Fundamentals (3 decks)

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