REHS/RS NEHA Exam (Actual) Exam
Solved 100% Correct A+ Pass
When gas pipe is leaking, what methods would be used by the technician to identify the
exact point of leakage? - Answer ✔✔- Using soap bubble solution
What is the graphic tool used by meteorologists to give a succinct view of how wind
speed and direction are typically distributed at a particular location - Answer ✔✔- Wind
Rose
What is the lowest portion of Earth's atmosphere called: - Answer ✔✔- troposphere (a
height of about 3.7-6.2 miles (6-10 km)
What three viruses cause the largest number of known
cases of illness through contaminated food: - Answer ✔✔- Hepatitis, Rotavirus,
Norovirus
Shellfish poisoning is caused by a group of toxins produced by: - Answer ✔✔-
planktonic algae (dinoflagellates, in most cases)
What is the most widely accepted detection method for the saxitoxins (Paralytic
Shellfish Poisoning) around the world: - Answer ✔✔- mouse bioassay (not as useful in
Diarrhetic Shellfish Poisoning or Neurotoxic Shellfish Poisoning)
Pufferfish (also called "fugu" or "blowfish") are thought of as a delicacy - even though
they contain this toxin: - Answer ✔✔- tetrodotoxin (in some types of pufferfish, some of
the organs like the liver and skin contain tetrodotoxin; in some pufferfish the toxin is in
the meat also; and some have no toxin at all)
Compounds that cause neurological symptoms such as profuse sweating, coma,
convulsions, hallucinations, excitement, depression, spastic colon - Answer ✔✔-
Neurotoxins
Compounds that produce rapid, transient nausea, vomiting, abdominal cramping, and
diarrhea: - Answer ✔✔- gastrointestinal irritants
mushrooms in this category generally are nontoxic and produce no symptoms, unless
alcohol is consumed within 72 hours after eating them, in which case a short-lived,
acute toxic syndrome is produced: - Answer ✔✔- disulfiram‐like toxins
This is is a human illness caused by consumption of some subtropical and tropical
marine finfish - Answer ✔✔- Ciguatera fish poisoning (caused by consumption of
,subtropical and tropical marine finfish that have accumulated ciguatoxins through their
diets)
Powdered infant formula is not sterile, and its nutrients provide good conditions for the
growth of - Answer ✔✔- Cronobacter (after reconstitution)
Travelers diarrhea is caused by which E. Coli (acronym)? - Answer ✔✔- ETEC
(Enterotoxigenic Escherichia coli)
Cholera is caused by which bacteria - Answer ✔✔- Vibrio (but not all Vibrio cause
cholera)
Q fever is caused by which food borne illness causing bacteria - Answer ✔✔- Coxiella
burnetii (the CDC has declared it a Category B potential bioterrorism agent)
Plant FOODS that are cooked for hot holding shall be cooked to a temperature of -
Answer ✔✔- 135F
How long must POULTRY, BALUTS, wild GAME ANIMALS (as specified under
Subparagraphs 3-201.17(A)(3) and (4)), stuffed FISH, stuffed MEAT, stuffed pasta,
stuffed POULTRY, stuffed RATITES, or stuffing containing FISH, MEAT, POULTRY, or
RATITES be cooked at 165F? - Answer ✔✔- instantaneous
Fish to be served raw must be frozen how cold for how long? (except some Tuna and
aquaculture fish) - Answer ✔✔- -4F for 7 days, -31 for 15 hours, frozen to-31F until solid
then stored -4°F for 24 hours
If immersion in hot water is used for SANITIZING in a manual operation, the
temperature of the water shall be maintained at - Answer ✔✔- 171F or above
Total alkalinity of swimming pools shall be maintained in the range of: - Answer ✔✔- 60-
180 ppm (mg/l)
the thick-walled, environmentally resistant structure released in the feces of infected
animals that serves to transfer the infectious stages of sporozoan parasites (e.g.,
Cryptosporidium) to new hosts. - Answer ✔✔- Oocyst
Milligrams per Liter (mg/L) is the equivalent metric measure to: - Answer ✔✔- parts per
million (ppm)
liable to ignite spontaneously on exposure to air - Answer ✔✔- Pyrophoric
"RATITE" means - Answer ✔✔- a flightless bird such as an emu, ostrich, or rhea.
,Which organization requires cover for baking dough - Answer ✔✔- BISSC (Baking
Industry Sanitation Standards Committee)
The Registered Sanitarians are first and foremost: - Answer ✔✔- Educators
Common microorganism associated with skin rash in whirlpools? - Answer ✔✔-
Pseudomonas aeruginosa
Complaining of extreme eye irritation by swimmers in a swimming pool may be: -
Answer ✔✔- Improper pH value
Workers in dental care may receive: - Answer ✔✔- Mercury Vapor poisoning
Most accidents that occur in the home to infants aged 1-4 is caused by: - Answer ✔✔-
Walking/falling
Most accidents around swimming pools: - Answer ✔✔- Drowning
Which can adversely effect the nerve cell? - Answer ✔✔- Neurotoxin
This is usually found with Salmonella, caused by contaminated chicken source. High
rate of infection: - Answer ✔✔- Campylobacter jejuni
What is the most enteric disease: - Answer ✔✔- Norwalk virus
The LEAST amount of backfill over the absorption field should be: - Answer ✔✔- 12-18
inches
Best method to avoid UST (Underground Storage Tank)problems: - Answer ✔✔-
Prevent corrosion
Filters will: - Answer ✔✔- Reduce stray radiation
Swimmers ear is caused by: - Answer ✔✔- Pseudomonas
A principle for effective radiation protection: - Answer ✔✔- distance, time, shielding
Radiation could scatter and bounce off the - Answer ✔✔- wall, floor, ceiling
Know characteristics of alpha particles - Answer ✔✔- Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Do they have a high penetration rate? No
, Which test is initially used if water is suspected of contamination with fecal matter? -
Answer ✔✔- FECAL coliform.
Which one is the correct sequence? - Answer ✔✔- Coagulation-flocculation-
sedimentation-filtration
The minimum retention time recommended for a septic tank is: - Answer ✔✔- 24 hours
Which filter is BEST to use for small communities in developing areas and in rural
locations? - Answer ✔✔- Slow sand filter
Which filter is BEST for removal of Giardia cysts from low turbidity water - Answer ✔✔-
Slow sand filter
Microbial pollution travels only a short distance through: - Answer ✔✔- Smooth clay
Backsiphonage may be prevented by all of the following methods except: - Answer ✔✔-
Hydrostatic loops
Which of the following is NOT REQUIRED at a water treatment plant? - Answer ✔✔- A
Pre-incident Plan
Giardia is classified as a - Answer ✔✔- protozoa
Entamoeba Histolytica is a - Answer ✔✔- Protozoa
Which is the preferred field test for a water system (for residual chlorine)? - Answer ✔✔-
DPD
Which is the measurement of the amount of light scattered by particles suspended in
water test sample? - Answer ✔✔- Nephelometric Turbidity Units (NTU)
Which is transmitted by food or water? - Answer ✔✔- Hepatitis A
What is another name for swimmer's itch? - Answer ✔✔- Schistosoma spp
High concentrations of Nitrates in drinking water are: - Answer ✔✔- A possible cause of
methemoglobinemia (Blue Baby Syndrome)
Well head protection? - Answer ✔✔- casing, cap and surface seal
If a water sample is chlorinated: - Answer ✔✔- Use a bottle with Sodium Thiosulfate
(acts as a dechlor)
Solved 100% Correct A+ Pass
When gas pipe is leaking, what methods would be used by the technician to identify the
exact point of leakage? - Answer ✔✔- Using soap bubble solution
What is the graphic tool used by meteorologists to give a succinct view of how wind
speed and direction are typically distributed at a particular location - Answer ✔✔- Wind
Rose
What is the lowest portion of Earth's atmosphere called: - Answer ✔✔- troposphere (a
height of about 3.7-6.2 miles (6-10 km)
What three viruses cause the largest number of known
cases of illness through contaminated food: - Answer ✔✔- Hepatitis, Rotavirus,
Norovirus
Shellfish poisoning is caused by a group of toxins produced by: - Answer ✔✔-
planktonic algae (dinoflagellates, in most cases)
What is the most widely accepted detection method for the saxitoxins (Paralytic
Shellfish Poisoning) around the world: - Answer ✔✔- mouse bioassay (not as useful in
Diarrhetic Shellfish Poisoning or Neurotoxic Shellfish Poisoning)
Pufferfish (also called "fugu" or "blowfish") are thought of as a delicacy - even though
they contain this toxin: - Answer ✔✔- tetrodotoxin (in some types of pufferfish, some of
the organs like the liver and skin contain tetrodotoxin; in some pufferfish the toxin is in
the meat also; and some have no toxin at all)
Compounds that cause neurological symptoms such as profuse sweating, coma,
convulsions, hallucinations, excitement, depression, spastic colon - Answer ✔✔-
Neurotoxins
Compounds that produce rapid, transient nausea, vomiting, abdominal cramping, and
diarrhea: - Answer ✔✔- gastrointestinal irritants
mushrooms in this category generally are nontoxic and produce no symptoms, unless
alcohol is consumed within 72 hours after eating them, in which case a short-lived,
acute toxic syndrome is produced: - Answer ✔✔- disulfiram‐like toxins
This is is a human illness caused by consumption of some subtropical and tropical
marine finfish - Answer ✔✔- Ciguatera fish poisoning (caused by consumption of
,subtropical and tropical marine finfish that have accumulated ciguatoxins through their
diets)
Powdered infant formula is not sterile, and its nutrients provide good conditions for the
growth of - Answer ✔✔- Cronobacter (after reconstitution)
Travelers diarrhea is caused by which E. Coli (acronym)? - Answer ✔✔- ETEC
(Enterotoxigenic Escherichia coli)
Cholera is caused by which bacteria - Answer ✔✔- Vibrio (but not all Vibrio cause
cholera)
Q fever is caused by which food borne illness causing bacteria - Answer ✔✔- Coxiella
burnetii (the CDC has declared it a Category B potential bioterrorism agent)
Plant FOODS that are cooked for hot holding shall be cooked to a temperature of -
Answer ✔✔- 135F
How long must POULTRY, BALUTS, wild GAME ANIMALS (as specified under
Subparagraphs 3-201.17(A)(3) and (4)), stuffed FISH, stuffed MEAT, stuffed pasta,
stuffed POULTRY, stuffed RATITES, or stuffing containing FISH, MEAT, POULTRY, or
RATITES be cooked at 165F? - Answer ✔✔- instantaneous
Fish to be served raw must be frozen how cold for how long? (except some Tuna and
aquaculture fish) - Answer ✔✔- -4F for 7 days, -31 for 15 hours, frozen to-31F until solid
then stored -4°F for 24 hours
If immersion in hot water is used for SANITIZING in a manual operation, the
temperature of the water shall be maintained at - Answer ✔✔- 171F or above
Total alkalinity of swimming pools shall be maintained in the range of: - Answer ✔✔- 60-
180 ppm (mg/l)
the thick-walled, environmentally resistant structure released in the feces of infected
animals that serves to transfer the infectious stages of sporozoan parasites (e.g.,
Cryptosporidium) to new hosts. - Answer ✔✔- Oocyst
Milligrams per Liter (mg/L) is the equivalent metric measure to: - Answer ✔✔- parts per
million (ppm)
liable to ignite spontaneously on exposure to air - Answer ✔✔- Pyrophoric
"RATITE" means - Answer ✔✔- a flightless bird such as an emu, ostrich, or rhea.
,Which organization requires cover for baking dough - Answer ✔✔- BISSC (Baking
Industry Sanitation Standards Committee)
The Registered Sanitarians are first and foremost: - Answer ✔✔- Educators
Common microorganism associated with skin rash in whirlpools? - Answer ✔✔-
Pseudomonas aeruginosa
Complaining of extreme eye irritation by swimmers in a swimming pool may be: -
Answer ✔✔- Improper pH value
Workers in dental care may receive: - Answer ✔✔- Mercury Vapor poisoning
Most accidents that occur in the home to infants aged 1-4 is caused by: - Answer ✔✔-
Walking/falling
Most accidents around swimming pools: - Answer ✔✔- Drowning
Which can adversely effect the nerve cell? - Answer ✔✔- Neurotoxin
This is usually found with Salmonella, caused by contaminated chicken source. High
rate of infection: - Answer ✔✔- Campylobacter jejuni
What is the most enteric disease: - Answer ✔✔- Norwalk virus
The LEAST amount of backfill over the absorption field should be: - Answer ✔✔- 12-18
inches
Best method to avoid UST (Underground Storage Tank)problems: - Answer ✔✔-
Prevent corrosion
Filters will: - Answer ✔✔- Reduce stray radiation
Swimmers ear is caused by: - Answer ✔✔- Pseudomonas
A principle for effective radiation protection: - Answer ✔✔- distance, time, shielding
Radiation could scatter and bounce off the - Answer ✔✔- wall, floor, ceiling
Know characteristics of alpha particles - Answer ✔✔- Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Do they have a high penetration rate? No
, Which test is initially used if water is suspected of contamination with fecal matter? -
Answer ✔✔- FECAL coliform.
Which one is the correct sequence? - Answer ✔✔- Coagulation-flocculation-
sedimentation-filtration
The minimum retention time recommended for a septic tank is: - Answer ✔✔- 24 hours
Which filter is BEST to use for small communities in developing areas and in rural
locations? - Answer ✔✔- Slow sand filter
Which filter is BEST for removal of Giardia cysts from low turbidity water - Answer ✔✔-
Slow sand filter
Microbial pollution travels only a short distance through: - Answer ✔✔- Smooth clay
Backsiphonage may be prevented by all of the following methods except: - Answer ✔✔-
Hydrostatic loops
Which of the following is NOT REQUIRED at a water treatment plant? - Answer ✔✔- A
Pre-incident Plan
Giardia is classified as a - Answer ✔✔- protozoa
Entamoeba Histolytica is a - Answer ✔✔- Protozoa
Which is the preferred field test for a water system (for residual chlorine)? - Answer ✔✔-
DPD
Which is the measurement of the amount of light scattered by particles suspended in
water test sample? - Answer ✔✔- Nephelometric Turbidity Units (NTU)
Which is transmitted by food or water? - Answer ✔✔- Hepatitis A
What is another name for swimmer's itch? - Answer ✔✔- Schistosoma spp
High concentrations of Nitrates in drinking water are: - Answer ✔✔- A possible cause of
methemoglobinemia (Blue Baby Syndrome)
Well head protection? - Answer ✔✔- casing, cap and surface seal
If a water sample is chlorinated: - Answer ✔✔- Use a bottle with Sodium Thiosulfate
(acts as a dechlor)
