NATE Indoor Air Quality Exam Flashcards
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| 100609407 | Which of the following is known as the "silent killer"? A: Carbon dioxide B: Carbon tetrachloride C: Carbon monoxide D: Monodioxide | C: Carbon monoxide | 0 | |
| 100609408 | ___________ ventilation is a control strategy used to maintain a high oxygen content in buildings where a healthy environment is of particular concern. A: Demand B: Outside C: Purge D: Smoke | A: Demand | 1 | |
| 100609409 | The most economical means of measuring the amount of oxygen deprivation in an occupied space is thru the use of: A: A carbon dioxide sensor B: A oxygen sensor C: A nitrogen sensor D: A smoke detector | A: A carbon dioxide sensor | 2 | |
| 100609410 | Which of the following is the natural result of combustion? A: Carbon dioxide B: Water vapor C: Carbon monoxide D: All of the above | D: All of the above | 3 | |
| 100609411 | The most serious result of incomplete combustion in any fuel burning heating device is: A: Carbon dioxide B: Water vapor C: Carbon monoxide D: Nitrogen | C: Carbon monoxide | 4 | |
| 100609412 | Carbon monoxide poisoning is often mistaken for: A: The flu with a headache B: Cancer C: A mild cold D: None of the above | A: The flu with a headache | 5 | |
| 100609413 | Carbon monoxide is measured in: A: Microns B: PPM C: Inches of water gage D: Percent | B: PPM | 6 | |
| 100609414 | Outdoor air intake dampers should be located away from: A: Busy ground level intersections B: Loading docks C: Sewer vents D: All of the above | D: All of the above | 7 | |
| 100609415 | "Infiltration" is: A: Air that enters a space without filtration or control B: Air that enters a space without filtration C: Air that leaves a building thru cracks and unchecked door seals D: None of the above | A: Air that enters a space without filtration or control | 8 | |
| 100609416 | "Off-gasing" is: A: The release of volatile compounds from products and construction materials B: Usually harmful compounds and chemicals which slowly enter living spaces over time C: Chemicals released into the air especially as the host material is heated D: All of the above | D: All of the above | 9 | |
| 100609417 | In the science of indoor air quality VOC stands for: A: Vocational Occupational Contaminants B: Volatile Occupational Contaminants C: Volatile Offgasing Contaminants D: Volatile Organic Compounds | D: Volatile Organic Compounds | 10 | |
| 100609418 | Which of the following are common symptoms of carbon monoxide poisoning? A: Headache and nausea B: Fatigue and dizziness C: Shortness of breath D: All of the above | D: All of the above | 11 | |
| 100609419 | Nitrogen dioxide is a toxic resulting from: A: The process of combustion B: Rapid oxidation C: Both a and b are correct D: Neither a nor b | C: Both a and b are correct | 12 | |
| 100609420 | The quality of air indoors can often be worse than that of the outdoors. A: TRUE B: FALSE | A: TRUE | 13 | |
| 100609421 | "Mitigation" means: A: To alleviate B: To increase C: To take legal action D: To document | A: To alleviate | 14 | |
| 100609422 | Solid particles suspended in air are measured in: A: Microns B: Parts per million C: Milligrams D: Hundredths of an inch | B: Parts per million | 15 | |
| 100609423 | Which of the following organizations has legal oversight over air quality in the United States? A: EPA B: ARI C: RSES D: ASHRAE | A: EPA | 16 | |
| 100609424 | The higher the velocity of the air thru a fiber filter the: A: More effective the filtration B: The less effective the filtration C: Air velocity had no affect on filtration D: None of the above is correct | B: The less effective the filtration | 17 | |
| 100609425 | At what level of indoor air carbon monoxide do most fire departments require emergency personnel to wear self contained breathing gear (SCBA)? A: 8 ppm B: 35 ppm C: 50 ppm D: 100 ppm | C: 50 ppm | 18 | |
| 100609426 | The function of an ERV is to: A: Exchange heat between exhaust and intake air B: Control the static pressure in the main trunk duct C: Control the supply water pressure in high-rise buildings D: Prevent the accumulation of VOCs in the fresh air intake | A: Exchange heat between exhaust and intake air Energy Recovery Ventilation | 19 | |
| 100609427 | ASHRAE standard 55-1992 specifies the conditions likely to be thermally acceptable to _______ percent of adult occupants of a conditioned space. A: 50% B: 60% C: 75% D: 80% | C: 75% | 20 | |
| 100609428 | Indoor air quality is legally the responsibility of: A: The building owner B: The business leasing the building C: Those operating and maintaining the building D: All of the above | D: All of the above | 21 | |
| 100609429 | Clean rooms are classified according to: A: The particle count per cubic foot of air B: Microns allowed per square foot of surface area C: Parts per million allowed per cubic centimeter D: Percent of filtration at 700 fpm of linear airflow | A: The particle count per cubic foot of air | 22 | |
| 100609430 | HEPA stands for: A: High Efficiency Particulate Air filter B: High Efficiency and Performance Air filter C: Highly Effective Performance Air filtration D: Heating Efficiency Performance Association | A: High Efficiency Particulate Air filter | 23 | |
| 100609431 | The internal static pressure in a building should be approximately: A: 0.5 inches higher than the outside air pressure B: 0.05 inches higher than the outside air pressure C: 0.5 inches lower than the outside air pressure D: 0.05 inches lower than the outside air pressure | B: 0.05 inches higher than the outside air pressure | 24 | |
| 100609432 | Activated charcoal is often satisfactory for the removal of: A: Gas-phase toxic or odorous pollutants B: Particulates of .5 microns or larger C: Particulates of 12 microns or larger D: Fibrous insulation suspended in air | A: Gas-phase toxic or odorous pollutants | 25 | |
| 100609433 | A __________ biological safety cabinet is a gastight negative pressure containment system that provides a physical barrier between the agent and the worker. A: Class 1 B: Class 2a C: Class 2b D: Class 3 | D: Class 3 | 26 | |
| 100609434 | Is refrigerant oil that has gone thru a compressor burn-out classified as a toxic waste? A: Yes, if the oil contains a substance classified by the EPA as a toxic waste B: Yes, because it contains acids C: Yes, the EPA classifies all substances that have burned as toxic waste D: No, none of the above is correct | A: Yes, if the oil contains a substance classified by the EPA as a toxic waste | 27 | |
| 100609435 | Three common methods used to mitigate poor indoor air quality are: A: Filtration, ventilation and exhaust B: Filtration, capture and exhaust C: Capture, removal and reduction D: Removal, reduction and retention | A: Filtration, ventilation and exhaust | 28 | |
| 100609436 | A micron is: A: One 1,000th of an inch B: One 10,000th of an inch C: One 25,400th of an inch D: One millionth of an inch | C: One 25,400th of an inch | 29 | |
| 100609437 | Bacteria, molds, pollen, and viruses are types of: A: Chemical contaminants B: Biological contaminants C: Combustion contaminants D: Physical contaminants | B: Biological contaminants | 30 | |
| 100609438 | According to the World Health Organization approximately what percentage of buildings suffers from SBS (Sick Building Syndrome)? A: 10% B: 15% C: 25% D: 30% | D: 30% | 31 | |
| 100609439 | A key factor in solving indoor air quality problems is to: A: Carefully measure the types and quantity of contaminants B: Locate and isolate the source of the pollution C: Ensure all occupants are aware of the problem D: Keep exact records of the actions taken | B: Locate and isolate the source of the pollution | 32 | |
| 100609440 | Which of the following steps would be the first step in the process of investigating an indoor air quality problem at a building? A: Conducting an IAQ survey B: Reviewing the HVAC system type and condition C: Performing a full-scale IAQ assessment D: Defining the perceived problem | D: Defining the perceived problem | 33 | |
| 100609441 | Physical stressors are those factors which: A: Can be sensed, felt, seen or heard B: Make the occupant uncomfortable C: May include factors the occupant is not aware of D: All of the above | A: Can be sensed, felt, seen or heard | 34 | |
| 100609442 | Sick Building Syndrome is highly suspected when: A: 20% or more of the building occupants complain with physical symptoms within a two-week period B: A high degree of occupants call in sick with symptoms of headaches, fatigue, dizziness, coughing and nausea C: A high degree of occupants find that their symptoms are alleviated by leaving the building D: All of the above | D: All of the above | 35 | |
| 100609443 | During an initial pre-investigatory building walk-thru which of the following measurements may be taken? A: Nitrogen dioxide, carbon monoxide and tobacco smoke readings B: Volatile compounds, oxides and radon measurements C: Readings for particulate count and biological sampling D: Carbon dioxide, temperature and relative humidity readings | D: Carbon dioxide, temperature and relative humidity readings | 36 | |
| 100609444 | Which of the following gases lead the list as originating from manmade materials within a building? A: Nitrous oxide B: Carbon monoxide C: Nitrogen dioxide D: Formaldehyde | D: Formaldehyde | 37 | |
| 100609445 | Which of the following are psychosocial factors affecting personal comfort: A: The presence of residual tobacco smoke in the building B: The presence of carbon dioxide in the air C: The amount of personal work space and quality of furnishings D: None of the above | C: The amount of personal work space and quality of furnishings | 38 | |
| 100609446 | Which of the following can affect the intensity of a person's reaction to an irritant in the air? A: Temperature B: Humidity C: Temperature and humidity D: Presence of others in the area | C: Temperature and humidity | 39 | |
| 100609447 | A fairly common but not regularly recognized source of poor indoor air quality and increased dust and residue in homes is: A: The use of candles B: Synthetic carpets C: Down filled comforters D: Computer monitors | A: The use of candles | 40 | |
| 100609448 | Which of the following substances has been directly attributed to as many as 20,000 cases of lung cancer in the United States? A: Radon gas B: The use of candles C: High levels of carbon dioxide D: High levels of nitrogen | A: Radon gas | 41 | |
| 100609449 | Concentrations of radon gas is measured in: A: Picocuries B: Microns C: Ppm D: Micrograms | A: Picocuries | 42 | |
| 100609450 | Particulates are categorized in terms of: A: Size and source B: Size and density C: Density and diameter D: Size and color | A: Size and source | 43 | |
| 100609451 | Excessively high concentrations of carbon dioxide in indoor air is usually an indication of: A: A lack of ventilation air B: An increased rate of infiltration air C: SBS D: Tobacco smoke in the air | A: A lack of ventilation air | 44 | |
| 100609452 | Which of the following IAQ problems was first discovered to have it source in HVAC cooling towers? A: Legionnella B: Poor air distribution C: Inadequate makeup air D: Radon | A: Legionnella | 45 | |
| 100609453 | Organic compounds are: A: Compounds which contain carbon B: Compounds which contain synthetics C: Compounds consisting of radioactive elements D: Those which can only be created in a laboratory | A: Compounds which contain carbon | 46 | |
| 100609454 | A compound is: A: A material made up of two or more elements electrically bound to one another. B: A material made up of three or more elements chemically bound to one another. C: A material made up of excess electrons D: A naturally occurring element | A: A material made up of two or more elements electrically bound to one another. | 47 | |
| 100609455 | TLV stands for: A: Threshold Limit Value B: Threshold Limit Vortex C: Theoretical Limit Value D: Theoretical Lowest Value | A: Threshold Limit Value | 48 | |
| 100609456 | The average urban outdoor air concentration of carbon dioxide has been determined to be: A: 40 ppm B: 400 ppm C: 4,000 ppm D: 40,000 ppm | A: 40 ppm | 49 |