REHS Sample Exam Questions 1 questions and
answers graded already passed
1. What are the three things time, distance, sheilding
that provide protection
against ra- diation?
2. What scale is used when
The A-weighted scale is most commonly used. It
mea- suring noise in a
considers frequency, intensity , and impact level.
sheet metal shop?
3. how is ozone created? Photochemically. Naturally, as sunlight passes through
oxygen
molecules, and by high voltage electricity (lightening). O +
UV light
4. What does sodium It neutralizes it. It destroys the free available chlorine
thiosulfate do to chlorine?
present without ettecting pH
5. how long does it take
100 years.
class A radioactive waste
to degrade to a safe
level?
In stairwells with poor ventilation
6. Where do you sample
for radon in schools?
7. What are the characeristsics of They are easily absorbed and have low
penetrating ability.
alpha particles?
8. What are the criteria air Sulfer dioxide, nitrogen oxide, carbon monoxide, lead,
pollu- tants?
partic- ulate matter
9. How is dust from a cement kiln Electrostatic precipitater. Particles pass through an
electrical
cleaned? field, are charged, then are attracted to a plate. the particles
1/
18
,REHS Sample Exam Questions 1 questions and
answers graded already passed
then fall into a hopper.
10. how far can a fly penetrate the Compacted, six inches. Uncompacted, five feet.
soil?
2/
18
, REHS Sample Exam Questions 1 questions and
answers graded already passed
11. How do you prevent Lyme Avoid ticks. Cover up and use repellant. Remove tick
dis- ease?
carefully and seek medical attention. The cause is a
spirochete Borrelia burgendorfi.
12. What are the critical
Temperatures associated with shipping, receiving,
control
storage,
points in receiving and prepar- preparation, cooking, cooling, holding (hot and
cold) and
ing chicken? relatively clean stream?
13. What does it mean when 18. What type of roach is most
milk tests negative for common in American cities?
phosphates?
19. What do roaches carry in their
14. Why has there been a gut?
reduc- tion in blood lead
levels?
15. How often does the CDC
rec- ommend testing
blood lead levels in
children who live in high
risk areas?
16. What type of filtration
system should be
implemented in a small
community?
17. What type of filtration
system should be
implemented in a new
town with a clear lake and a
3/
18
answers graded already passed
1. What are the three things time, distance, sheilding
that provide protection
against ra- diation?
2. What scale is used when
The A-weighted scale is most commonly used. It
mea- suring noise in a
considers frequency, intensity , and impact level.
sheet metal shop?
3. how is ozone created? Photochemically. Naturally, as sunlight passes through
oxygen
molecules, and by high voltage electricity (lightening). O +
UV light
4. What does sodium It neutralizes it. It destroys the free available chlorine
thiosulfate do to chlorine?
present without ettecting pH
5. how long does it take
100 years.
class A radioactive waste
to degrade to a safe
level?
In stairwells with poor ventilation
6. Where do you sample
for radon in schools?
7. What are the characeristsics of They are easily absorbed and have low
penetrating ability.
alpha particles?
8. What are the criteria air Sulfer dioxide, nitrogen oxide, carbon monoxide, lead,
pollu- tants?
partic- ulate matter
9. How is dust from a cement kiln Electrostatic precipitater. Particles pass through an
electrical
cleaned? field, are charged, then are attracted to a plate. the particles
1/
18
,REHS Sample Exam Questions 1 questions and
answers graded already passed
then fall into a hopper.
10. how far can a fly penetrate the Compacted, six inches. Uncompacted, five feet.
soil?
2/
18
, REHS Sample Exam Questions 1 questions and
answers graded already passed
11. How do you prevent Lyme Avoid ticks. Cover up and use repellant. Remove tick
dis- ease?
carefully and seek medical attention. The cause is a
spirochete Borrelia burgendorfi.
12. What are the critical
Temperatures associated with shipping, receiving,
control
storage,
points in receiving and prepar- preparation, cooking, cooling, holding (hot and
cold) and
ing chicken? relatively clean stream?
13. What does it mean when 18. What type of roach is most
milk tests negative for common in American cities?
phosphates?
19. What do roaches carry in their
14. Why has there been a gut?
reduc- tion in blood lead
levels?
15. How often does the CDC
rec- ommend testing
blood lead levels in
children who live in high
risk areas?
16. What type of filtration
system should be
implemented in a small
community?
17. What type of filtration
system should be
implemented in a new
town with a clear lake and a
3/
18
