REHS Exam 2026 Questions and Answers
What is an emetic? Describe a few examples observed in Environmental Health. -
Answer -It is a chemical that induces vomiting. In E.H. emetics are used in Vector
Control for rodent control, Red Squill
What does USDA stamp on meat signify? - Answer -The meat products have been
processed and inspected by the USDA (United State Department of Agriculture)
and has passed food quality inspections
Mobile Home parks are monitored by what Federal agency? - Answer -Housing
and Urban Development (HUD)
What are the specific requirements for an OXIDATION (stabilization) POND? -
Answer -The space (or area), time (up to 60 days) and the depth (3 to 5 feet)
For community-wide noise panning, what is the most important contributor to that
noise - Answer -automobiles;routes and traffic
What types of laws are government protected from liability? - Answer -Sovereign
immunity
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,What is grout seal? - Answer -this is the top space between a bored well and the
ground. the seal is usually concrete
What waste by-product is generated from sulfur oxide scrubbers? - Answer -
Sulfuric acid. The sulfur oxide reacts with the water in the scrubber to form acid.
This is also an important reaction in the atmosphere where the sulfur oxides react
with the atmospheric moisture and forms acid rain.
What type of laws do the Health Department enforce? - Answer -Administrative
(delegated laws)
You are asked to inspect and test for pH, conductivity, and heavy metals. What
type of inspection are you performing? - Answer -A hazardous waste inspection for
metal plating facility
In most cities, nitrogen oxide (NOX) is what source of pollution? - Answer -
Automobile exhaust
Search and inspection warrants are similar except? - Answer -with search warrants,
the search requirements are specific to a violation condition
When municipal water treatment facilities add fluoride into their water what is one
of the most important factors in calculating the dose? - Answer -the temperature of
the water. the colder the water the more flu0ride it absorbs
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, Who developed the Model Food Code? - Answer -The Food Drug Administration
(FDA)
What law establishes the Environmental Impact Statement? - Answer -The
National Environmental Policy Act (NEPA)
What is the average holding time for septic tanks? - Answer -24 hours
What is does it mean where they refer to "CRADLE to GRAVE" - Answer -
Whoever produces the hazardous material, they are responsible for the chemical
from the time they created (CRADLE) to it's final disposal (GRAVE)
Murine typhus (endemic typhus) is commonly spread by - Answer -Infected rat
flea Xenopsylla cheopis defecates the wound
With most anaphylactic shock victims, if prompt medical assistance is not
administered, death can usually result from? - Answer -They stop breathing
Does the level of TOTAL DISSOLVED SOLIDS in water affect chlorine
disinfection? If it is why? - Answer -NO
For hot water sanitizing what are the MINIMUM temperatures required in
CURFFLaW and the Model Food Code? - Answer -CURFFLaw is 180 degrees F
for 30 sec
The Model Food Code is 171 degrees F for 30 sec
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
What is an emetic? Describe a few examples observed in Environmental Health. -
Answer -It is a chemical that induces vomiting. In E.H. emetics are used in Vector
Control for rodent control, Red Squill
What does USDA stamp on meat signify? - Answer -The meat products have been
processed and inspected by the USDA (United State Department of Agriculture)
and has passed food quality inspections
Mobile Home parks are monitored by what Federal agency? - Answer -Housing
and Urban Development (HUD)
What are the specific requirements for an OXIDATION (stabilization) POND? -
Answer -The space (or area), time (up to 60 days) and the depth (3 to 5 feet)
For community-wide noise panning, what is the most important contributor to that
noise - Answer -automobiles;routes and traffic
What types of laws are government protected from liability? - Answer -Sovereign
immunity
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,What is grout seal? - Answer -this is the top space between a bored well and the
ground. the seal is usually concrete
What waste by-product is generated from sulfur oxide scrubbers? - Answer -
Sulfuric acid. The sulfur oxide reacts with the water in the scrubber to form acid.
This is also an important reaction in the atmosphere where the sulfur oxides react
with the atmospheric moisture and forms acid rain.
What type of laws do the Health Department enforce? - Answer -Administrative
(delegated laws)
You are asked to inspect and test for pH, conductivity, and heavy metals. What
type of inspection are you performing? - Answer -A hazardous waste inspection for
metal plating facility
In most cities, nitrogen oxide (NOX) is what source of pollution? - Answer -
Automobile exhaust
Search and inspection warrants are similar except? - Answer -with search warrants,
the search requirements are specific to a violation condition
When municipal water treatment facilities add fluoride into their water what is one
of the most important factors in calculating the dose? - Answer -the temperature of
the water. the colder the water the more flu0ride it absorbs
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, Who developed the Model Food Code? - Answer -The Food Drug Administration
(FDA)
What law establishes the Environmental Impact Statement? - Answer -The
National Environmental Policy Act (NEPA)
What is the average holding time for septic tanks? - Answer -24 hours
What is does it mean where they refer to "CRADLE to GRAVE" - Answer -
Whoever produces the hazardous material, they are responsible for the chemical
from the time they created (CRADLE) to it's final disposal (GRAVE)
Murine typhus (endemic typhus) is commonly spread by - Answer -Infected rat
flea Xenopsylla cheopis defecates the wound
With most anaphylactic shock victims, if prompt medical assistance is not
administered, death can usually result from? - Answer -They stop breathing
Does the level of TOTAL DISSOLVED SOLIDS in water affect chlorine
disinfection? If it is why? - Answer -NO
For hot water sanitizing what are the MINIMUM temperatures required in
CURFFLaW and the Model Food Code? - Answer -CURFFLaw is 180 degrees F
for 30 sec
The Model Food Code is 171 degrees F for 30 sec
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
