REHS/NEHA RS Final Board Certification Study Guide Exam Questions with Certified for Accuracy Answers 2023/2024
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Course
NERC
Institution
NERC
REHS/NEHA RS Final Board Certification Study Guide Exam Questions with Certified for Accuracy Answers 2023/2024
The precise levels at which specific air pollutants become a health hazard are relatively easy to establish by existing surveillance systems.
a. True
b. False - correct answer...
REHS/NEHA RS Final Board Certification
Study Guide Exam Questions with Certified
for Accuracy Answers 2023/2024
1
Marks: 1
The precise levels at which specific air pollutants become a
health hazard are relatively easy to establish by existing
surveillance systems.
a. True
b. False - correct answer False
2
Marks: 1
Particulates larger than 10 microns can penetrate easily into the
respiratory tract.
a. True
b. False - correct answer False
3
Marks: 1
It is possible to control noise
a. at the source
b. in its path of transmission
c. where it is received
d. all of the above - correct answer all of the above
4
Marks: 1
,Fluorocarbons in the atmosphere are of concern because they
may
a. react with the ozone in the upper atmosphere, thus reducing
the total amount of ozone available
b. cause an increase in ultraviolet radiation reaching the earth
c. cause an increase in skin cancers and changes in our climate,
animal, and plant life
d. all of the above - correct answer all of the above
5
Marks: 1
The terms "washout" and "rainout" both refer to a cleansing
process of pollutants in the atmosphere.
a. True
b. False - correct answer True
6
Marks: 1
A ______ is a dimensionless unit to express physical intensity or
sound pressure levels.
a. noise level
b. decibel
c. hertz
d. sound pressure level (SPL) - correct answer decibel
,7
Marks: 1
The frequency of a sound determines its pitch.
a. True
b. False - correct answer True
8
Marks: 1
When two pollutants are combined, the effects are greater than
the sum of the individual effects. This is called
a. commensalism
b. synergism
c. magnification
d. multiplication - correct answer synergism
9
Marks: 1
Scrubbers are wet collectors generally used to remove particles
that form as a
a. nonsoluable vapor
b. mist, solid, or vapor
c. fog, mist, or dust
d. fume, dust, or mist - correct answer fog, mist, or dust
, 10
Marks: 1
Precipitation accomplishes an effective cleansing process of
pollutants in the atmosphere by
a. accumulation of small particles in the formation of raindrops
or snowflakes in clouds
b. the washing out of scavenging of large particles by falling
raindrops or snowflakes
c. removal of gaseous pollutants by dissolution and absorption
d. all of the above - correct answer all of the above
11
Marks: 1
A deterioration in the ozone layer of the stratosphere can cause
an increase in ultraviolet radiation reaching the earth.
a. True
b. False - correct answer True
12
Marks: 1
The unit of measurement most commonly used to measure
loudness is called
a. hertz
b. phon
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