NCCER Industrial Exam Study Guide – 4
Exam Questions And Answers
multiple chemical sensitivity - - -
correct 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 - - -
correct answer ✅Buildings that have low air - exchange rates are
20 percent - - -
correct 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 - - -
correct answer ✅Short - term or immediate effects of human
exposure to poor IAQ may
cancer - - -
correct answer ✅Which of the following is a possible long - term
effected of exposure to indoor air pollutants ?
,NCCER Industrial Exam Study Guide – 4
Exam Questions And Answers
IEQ - - -
correct answer ✅IAQ is an integral part of
prevailing wind conditioned at the site - - -
correct 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 - - -
correct answer ✅Which of the following is a true statement ?
1,000 - - -
correct answer ✅A ventilation problem may exist when the carbon
dioxide level in a room exceeds how many parts per million (ppm) ?
soil and rocks - - -
correct answer ✅The most common source of radon is uranium in
, NCCER Industrial Exam Study Guide – 4
Exam Questions And Answers
sub - slab depressurization - - -
correct answer ✅Which of the following is a common method for
reducing radon in a building ?
the breathing of the building's human occupants - - -
correct answer ✅High levels of carbon dioxide in a building can
result from
properly sealing all ducts during installation - - -
correct answer ✅The best solution to air - duct leakage problems
is
bacteria - - -
correct answer ✅Ultraviolet light is used to control
gaseous vapors - - -
correct answer ✅Activated charcoal filters are used mainly to
remove
If an HVAC contractor detects an IAQ problem during routine
maintenance , the contractor - - -
correct answer ✅Which of the following statements is true ?
Exam Questions And Answers
multiple chemical sensitivity - - -
correct 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 - - -
correct answer ✅Buildings that have low air - exchange rates are
20 percent - - -
correct 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 - - -
correct answer ✅Short - term or immediate effects of human
exposure to poor IAQ may
cancer - - -
correct answer ✅Which of the following is a possible long - term
effected of exposure to indoor air pollutants ?
,NCCER Industrial Exam Study Guide – 4
Exam Questions And Answers
IEQ - - -
correct answer ✅IAQ is an integral part of
prevailing wind conditioned at the site - - -
correct 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 - - -
correct answer ✅Which of the following is a true statement ?
1,000 - - -
correct answer ✅A ventilation problem may exist when the carbon
dioxide level in a room exceeds how many parts per million (ppm) ?
soil and rocks - - -
correct answer ✅The most common source of radon is uranium in
, NCCER Industrial Exam Study Guide – 4
Exam Questions And Answers
sub - slab depressurization - - -
correct answer ✅Which of the following is a common method for
reducing radon in a building ?
the breathing of the building's human occupants - - -
correct answer ✅High levels of carbon dioxide in a building can
result from
properly sealing all ducts during installation - - -
correct answer ✅The best solution to air - duct leakage problems
is
bacteria - - -
correct answer ✅Ultraviolet light is used to control
gaseous vapors - - -
correct answer ✅Activated charcoal filters are used mainly to
remove
If an HVAC contractor detects an IAQ problem during routine
maintenance , the contractor - - -
correct answer ✅Which of the following statements is true ?
