REHS/RS UPDATED Exam Questions and
CORRECT Answers
What does photodecomposition in a plastic bottle do in a landfill or waste dump? -
CORRECT ANSWER- Reduce the amount of waste
In a newborn hospital wing humidifiers will? - CORRECT ANSWER- Need to be cleaned
frequently due to bacterial growth on the components
What is LEAST effected when contaminated air is found in a hospital? - CORRECT
ANSWER- Air filtered in the morgue.
What is the maximum time for industry to generate hazardous waste without a permit? -
CORRECT ANSWER- 90 = large quantity
180 = small quantity
What is the best way to prevent groundwater contamination in wells? - CORRECT
ANSWER- Grouting the annular space
Where are you least likely to find asbestos? - CORRECT ANSWER- Ceramic floor tile?
(other answers included insulated pipe coverings and wall plaster and asbestos can be found
in floor tiling products so if there is an option of NONE OF THE ABOVE...maybe choose
that one).
What industry does the BISSC deal with? - CORRECT ANSWER- Baking (stands for
Baking Industry Sanitation Standards Committee).
Which amendment deals with illegal search and seizure of private property? - CORRECT
ANSWER- 4th (IV)
Groundwater Rule? - CORRECT ANSWER- Protection against microbial organisms,
reducing the risk of fecal contamination of the water for those who use the groundwater
supply as a drinking source.
, Source water? - CORRECT ANSWER- Untreated water from streams, lakes, aquifers which
is ultimately used as the drinking supply for the general public.
When filling out a search warrant application what is not necessary to include? - CORRECT
ANSWER- Neighbor's testimony (is information which is not coming from an approved
authority...could be hearsay).
What are the most common contaminants found in an automobile crank shaft? (Crank case) -
CORRECT ANSWER- Gasoline and phenols
When testing for radon in schools where is the best place to test? - CORRECT ANSWER-
Lowest rooms in the building
The sand filter is used to remove? - CORRECT ANSWER- Bacteria and suspended solids
from water.
The formula Q=AIR is used to determine? - CORRECT ANSWER- Rate of runoff in a
watershed
What is the importance of Darcy's Law? - CORRECT ANSWER- It is a derived constitutive
equation that describes the flow of a fluid through a porous medium. the law was formulated
by Henry Darcy based on the results of his experiment on the flow of water through beds of
sand. It also forms the scientific basis of fluid permeability used in the earth sciences.
Q=KIA - CORRECT ANSWER- Groundwater flow, flow through an underground formation.
Which is LEAST likely to cause foodborne illness in schools? - CORRECT ANSWER-
Whole vegetables grown at school and cooked in a school cafeteria.
A possible cause of methemoglobinemia is? - CORRECT ANSWER- High concentrations of
Nitrates in drinking water
A water treatment plant should have what (according to Salvato)? - CORRECT ANSWER- A
well equipped lab, certified operator, and qualified chemist. (is certified chemist the same as
qualified chemist and if the question asks what is NOT needed at a water treatment plant
CORRECT Answers
What does photodecomposition in a plastic bottle do in a landfill or waste dump? -
CORRECT ANSWER- Reduce the amount of waste
In a newborn hospital wing humidifiers will? - CORRECT ANSWER- Need to be cleaned
frequently due to bacterial growth on the components
What is LEAST effected when contaminated air is found in a hospital? - CORRECT
ANSWER- Air filtered in the morgue.
What is the maximum time for industry to generate hazardous waste without a permit? -
CORRECT ANSWER- 90 = large quantity
180 = small quantity
What is the best way to prevent groundwater contamination in wells? - CORRECT
ANSWER- Grouting the annular space
Where are you least likely to find asbestos? - CORRECT ANSWER- Ceramic floor tile?
(other answers included insulated pipe coverings and wall plaster and asbestos can be found
in floor tiling products so if there is an option of NONE OF THE ABOVE...maybe choose
that one).
What industry does the BISSC deal with? - CORRECT ANSWER- Baking (stands for
Baking Industry Sanitation Standards Committee).
Which amendment deals with illegal search and seizure of private property? - CORRECT
ANSWER- 4th (IV)
Groundwater Rule? - CORRECT ANSWER- Protection against microbial organisms,
reducing the risk of fecal contamination of the water for those who use the groundwater
supply as a drinking source.
, Source water? - CORRECT ANSWER- Untreated water from streams, lakes, aquifers which
is ultimately used as the drinking supply for the general public.
When filling out a search warrant application what is not necessary to include? - CORRECT
ANSWER- Neighbor's testimony (is information which is not coming from an approved
authority...could be hearsay).
What are the most common contaminants found in an automobile crank shaft? (Crank case) -
CORRECT ANSWER- Gasoline and phenols
When testing for radon in schools where is the best place to test? - CORRECT ANSWER-
Lowest rooms in the building
The sand filter is used to remove? - CORRECT ANSWER- Bacteria and suspended solids
from water.
The formula Q=AIR is used to determine? - CORRECT ANSWER- Rate of runoff in a
watershed
What is the importance of Darcy's Law? - CORRECT ANSWER- It is a derived constitutive
equation that describes the flow of a fluid through a porous medium. the law was formulated
by Henry Darcy based on the results of his experiment on the flow of water through beds of
sand. It also forms the scientific basis of fluid permeability used in the earth sciences.
Q=KIA - CORRECT ANSWER- Groundwater flow, flow through an underground formation.
Which is LEAST likely to cause foodborne illness in schools? - CORRECT ANSWER-
Whole vegetables grown at school and cooked in a school cafeteria.
A possible cause of methemoglobinemia is? - CORRECT ANSWER- High concentrations of
Nitrates in drinking water
A water treatment plant should have what (according to Salvato)? - CORRECT ANSWER- A
well equipped lab, certified operator, and qualified chemist. (is certified chemist the same as
qualified chemist and if the question asks what is NOT needed at a water treatment plant
