NCCER Industrial Exam Study Guide – 4 - 2024
multiple chemical sensitivity - ANSWER-Persons who perceive they are vulnerable to exposure to certain chemicals and / or combinations of chemicals may suffer from
more susceptible to poor IAQ - ANSWER-Buildings that have low air - exchange rates are...
multiple chemical sensitivity - ✔✔✔ANSWER-Persons who perceive they are
vulnerable to exposure to certain chemicals and / or combinations of chemicals
may suffer from
more susceptible to poor IAQ - ✔✔✔ANSWER-Buildings that have low air -
exchange rates are
20 percent - ✔✔✔ANSWER-A building is said to have sick - building syndrome
when more than what percent of its occupants complain during a two - week period
of symptoms that are alleviated when the occupants leave the building ?
occur after a single , high - dose exposure - ✔✔✔ANSWER-Short - term or
immediate effects of human exposure to poor IAQ may
cancer - ✔✔✔ANSWER-Which of the following is a possible long - term effected
of exposure to indoor air pollutants ?
, IEQ - ✔✔✔ANSWER-IAQ is an integral part of
prevailing wind conditioned at the site - ✔✔✔ANSWER-To get proper ventilation
- damper building's HVAC equipment , once should consider outside - air duct
locations , neighboring pollutant orientation and adequate filtration systems into
the design of a new sources and the
Achieving good indoor air quality begins with initial building design , sitting , and
construction - ✔✔✔ANSWER-Which of the following is a true statement ?
1,000 - ✔✔✔ANSWER-A ventilation problem may exist when the carbon dioxide
level in a room exceeds how many parts per million (ppm) ?
soil and rocks - ✔✔✔ANSWER-The most common source of radon is uranium in
sub - slab depressurization - ✔✔✔ANSWER-Which of the following is a common
method for reducing radon in a building ?
the breathing of the building's human occupants - ✔✔✔ANSWER-High levels of
carbon dioxide in a building can result from
properly sealing all ducts during installation - ✔✔✔ANSWER-The best solution to
air - duct leakage problems is
bacteria - ✔✔✔ANSWER-Ultraviolet light is used to control
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