REHS Study Guide Questions with
verified answers graded A+ latest
update
REHS
REHS Study Guide Questions with
verified answers graded A+ latest
update
PC
,REHS Study Guide Questions with
verified answers graded A+ latest update
What is chlorine residual when it comes to water treatment? - correct answer
✔✔A low level of chlorine remaining in water after the initial application. Upon
initial dosing chlorine reacts with any organic matter in water. The amount of
chlorine used in these reactions is known as the chlorine demand of the water
What temperature is chlorine most effective? - correct answer ✔✔Chlorine is
more effective at higher temperatures (78 F)
What is the depth at which flies can emerge from a landfill? - correct answer ✔✔6
inches compacted and 5 inches noncompacted
What is the overall purpose of bar screens, comminutors, and grit chambers when
it comes to wastewater treatment? - correct answer ✔✔It removes larger solid
What is the most plentiful form of available water? - correct answer
✔✔Groundwater
What are Waterborne Diseases? - correct answer ✔✔Results from ingestion of
water that is harboring a pathogen example: Typhoid fever.
What are Water-washed Diseases? - correct answer ✔✔Spread by fecal-oral route
or person to person contact. Facilitated by lack of personal hygiene.
,What are Water-based Diseases? - correct answer ✔✔Caused by infection arising
through ingestion of pathogenic agent Example: guinea worm larvae, Termatode
larvae.
What are Water-related Diseases? - correct answer ✔✔Facilitated by insects
vector that breed in water: example filariastus abthropods that carry Dengue
fever.
What are Inhalation of contaminated water aerosols? - correct answer
✔✔Legionella Pneumophila
What is the ecologic agent of cyclosporiasis? - correct answer ✔✔Cyclospora
Cayetanensis
What food is associated with cyclosporiasis? - correct answer ✔✔Imported
Raspberries, Lettuce form South America
Most waterborne disease fatalities occurred before 1940 and were attributed to
the waterborne illness? - correct answer ✔✔Typhoid Fever
Waters suitable for drinking water supplies and shellfish rearing are monitored
routinely for? - correct answer ✔✔Microbiological Quality
Only what % of the global content of water constitutes fresh water? - correct
answer ✔✔2.6 or 3 Percent
, What is a waterborne disease that can be prevented through vaccinations is ? -
correct answer ✔✔Typhoid Fever or Cholera
The World Health Organization (WHO) estimates that ______% of all diseases are
attributable to inadequate water or sanitation - correct answer ✔✔80 Percent
Viral infections readily spread through drinking water, food and water-contact
recreation activities due to what? - correct answer ✔✔The low infectious dose for
pathogenic viruses and protoza.
Shigellosis: - correct answer ✔✔A bacteria
What is the specific agent for shingellosis? - correct answer ✔✔Genus shingella
Example: flexneri, sonnei, boydlii, and dysenteriae
What is the Reservoir for shingellosis? - correct answer ✔✔Feces of carriers and
infected persons
What are the symptoms of shingellosis? - correct answer ✔✔Acute onset with
diarrhea, fever, tenesmus, frequent stools containing blood and mucus.
What is the incubation for shingellosis? - correct answer ✔✔1-7 days, usually less
than 4 days
Botulism - correct answer ✔✔Bacterial toxin
verified answers graded A+ latest
update
REHS
REHS Study Guide Questions with
verified answers graded A+ latest
update
PC
,REHS Study Guide Questions with
verified answers graded A+ latest update
What is chlorine residual when it comes to water treatment? - correct answer
✔✔A low level of chlorine remaining in water after the initial application. Upon
initial dosing chlorine reacts with any organic matter in water. The amount of
chlorine used in these reactions is known as the chlorine demand of the water
What temperature is chlorine most effective? - correct answer ✔✔Chlorine is
more effective at higher temperatures (78 F)
What is the depth at which flies can emerge from a landfill? - correct answer ✔✔6
inches compacted and 5 inches noncompacted
What is the overall purpose of bar screens, comminutors, and grit chambers when
it comes to wastewater treatment? - correct answer ✔✔It removes larger solid
What is the most plentiful form of available water? - correct answer
✔✔Groundwater
What are Waterborne Diseases? - correct answer ✔✔Results from ingestion of
water that is harboring a pathogen example: Typhoid fever.
What are Water-washed Diseases? - correct answer ✔✔Spread by fecal-oral route
or person to person contact. Facilitated by lack of personal hygiene.
,What are Water-based Diseases? - correct answer ✔✔Caused by infection arising
through ingestion of pathogenic agent Example: guinea worm larvae, Termatode
larvae.
What are Water-related Diseases? - correct answer ✔✔Facilitated by insects
vector that breed in water: example filariastus abthropods that carry Dengue
fever.
What are Inhalation of contaminated water aerosols? - correct answer
✔✔Legionella Pneumophila
What is the ecologic agent of cyclosporiasis? - correct answer ✔✔Cyclospora
Cayetanensis
What food is associated with cyclosporiasis? - correct answer ✔✔Imported
Raspberries, Lettuce form South America
Most waterborne disease fatalities occurred before 1940 and were attributed to
the waterborne illness? - correct answer ✔✔Typhoid Fever
Waters suitable for drinking water supplies and shellfish rearing are monitored
routinely for? - correct answer ✔✔Microbiological Quality
Only what % of the global content of water constitutes fresh water? - correct
answer ✔✔2.6 or 3 Percent
, What is a waterborne disease that can be prevented through vaccinations is ? -
correct answer ✔✔Typhoid Fever or Cholera
The World Health Organization (WHO) estimates that ______% of all diseases are
attributable to inadequate water or sanitation - correct answer ✔✔80 Percent
Viral infections readily spread through drinking water, food and water-contact
recreation activities due to what? - correct answer ✔✔The low infectious dose for
pathogenic viruses and protoza.
Shigellosis: - correct answer ✔✔A bacteria
What is the specific agent for shingellosis? - correct answer ✔✔Genus shingella
Example: flexneri, sonnei, boydlii, and dysenteriae
What is the Reservoir for shingellosis? - correct answer ✔✔Feces of carriers and
infected persons
What are the symptoms of shingellosis? - correct answer ✔✔Acute onset with
diarrhea, fever, tenesmus, frequent stools containing blood and mucus.
What is the incubation for shingellosis? - correct answer ✔✔1-7 days, usually less
than 4 days
Botulism - correct answer ✔✔Bacterial toxin
