REHS/RS NEHA Study Guide with all Correct & 100%
Verified Answers |Actual Complete Update |Already
Graded A+
When gas pipe is leaking, what methods would be used by the technician to identify the exact
point of leakage? ✔Correct Answer-Using soap bubble solution
Which organization requires cover for baking dough ✔Correct Answer-BISSC (Baking Industry
Sanitation Standards Committee)
The Registered Sanitarians are first and foremost: ✔Correct Answer-Educators
Common microorganism associated with skin rash in whirlpools? ✔Correct Answer-
Pseudomonas aeruginosa
Complaining of extreme eye irritation by swimmers in a swimming pool may be: ✔Correct
Answer-Improper pH value
Workers in dental care may receive: ✔Correct Answer-Mercury Vapor poisoning
Most accidents that occur in the home to infants aged 1-4 is caused by: ✔Correct Answer-
Walking/falling
Most accidents around swimming pools: ✔Correct Answer-Drowning
Which can adversely effect the nerve cell? ✔Correct Answer-Neurotoxin
High rate of infection: ✔Correct Answer-Campylobacter jejuni -- usually found with
Salmonella, caused by contaminated chicken source.
Most enteric disease: (Enteric-related to the digestive system) ✔Correct Answer-Norwalk
virus
The LEAST amount of backfill over the absorption field should be: ✔Correct Answer-12 inches
(12-18'')
Best method to avoid UST (Underground Storage Tank)problems: ✔Correct Answer-
Prevention from corrosion
Filters will: ✔Correct Answer-Reduce stray radiation
,Swimmers ear is caused by: ✔Correct Answer-Pseudomonas
A principle for effective radiation protection: ✔Correct Answer-distance, time, shielding
Radiation could scatter and bounce off the ✔Correct Answer-wall, floor, ceiling
Know characteristics of alpha particles ✔Correct Answer-Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Do they have a high penetration rate? No
Minimum temperature for laundry in nursing home & health care facilities ✔Correct Answer-
160°F
Which test is initially used if water is suspected of contamination with fecal matter? ✔Correct
Answer-FECAL coliform.
Which one is the correct sequence? ✔Correct Answer-Coagulation-flocculation-
sedimentation-filtration
The minimum retention time recommended for a septic tank is: ✔Correct Answer-24 hours
Which filter is BEST to use for small communities in developing areas and in rural locations?
✔Correct Answer-Slow sand filter
Which filter is BEST for removal of Giardia cysts from low turbidity water ✔Correct Answer-
Slow sand filter (DE is best for swimming pools and industrial water supplies, not drinking
water)
Microbial pollution travels only a short distance through: ✔Correct Answer-Smooth clay
Backsiphonage may be prevented by all of the following methods except: ✔Correct Answer-
Hydrostatic loops
Which of the following is NOT REQUIRED at a water treatment plant? ✔Correct Answer-A Pre-
incident Plan
("A water treatment plant should have a well-equipped laboratory, certified operator, and
qualified chemist" -pg 232 of old Salvato book)
Giardia is classified as a ✔Correct Answer-protozoa
Which one is most commonly transmitted by food or water? ✔Correct Answer-Hepatitis A
, Entamoeba Histolytica is a ✔Correct Answer-Protozoa
Which is the preferred field test for a water system (for residual chlorine)? ✔Correct Answer-
DPD
Which is the measurement of the amount of light scattered by particles suspended in water test
sample? ✔Correct Answer-Nephelometric Turbidity Units (NTU)
Giardia is classified as a: ✔Correct Answer-Protozoa
Which is transmitted by food or water? ✔Correct Answer-Hepatitis A
Entamoeba Histolytica is classified as a? ✔Correct Answer-Protozoa
What is another name for swimmer's itch? ✔Correct Answer-Schistosoma spp
High concentrations of Nitrates in drinking water are: ✔Correct Answer-A possible cause of
methemoglobinemia (Blue Baby Syndrome)
Well head protection? ✔Correct Answer-casing, cap and surface seal
If a water sample is chlorinated: ✔Correct Answer-Use a bottle with Sodium Thiosulfate (acts
as a dechlor)
Water sampling technique when transporting to the lab? ✔Correct Answer-sterile glass or
plastic bottle is the most important (also using the right preservative is important)
Which steps are correct in stream cleaning? ✔Correct Answer-Stream pollution (organic) is
apparent along its length by a Zone of Degradation (just below the source), the Zone of Active
Decomposition, and the a Zone of Recovery or Self-Purification. O2 decreased in Zone of
Degredation suspended solids increased and sludge on the stream bottom.
Emergency water treatment? ✔Correct Answer-Boil for 1 minute. (100 degrees Celsius is 212
degrees Fahrenheit). Also can add suggested amount of chlorine per gallon of water and let sit
for 30 minutes. Can also use 8 drops of iodine tincture per quart of water. Can also use 1 tsp of
bleach per gallon of water
The composition of soil under an OSS drainfield is very important in the removal of both viruses
and bacteria. Which of the following soil conditions is most favorable for removal of viruses?
✔Correct Answer-Fine loamy sand over course sand or gravel
NTU are most commonly used to? ✔Correct Answer-Determine turbidity
Verified Answers |Actual Complete Update |Already
Graded A+
When gas pipe is leaking, what methods would be used by the technician to identify the exact
point of leakage? ✔Correct Answer-Using soap bubble solution
Which organization requires cover for baking dough ✔Correct Answer-BISSC (Baking Industry
Sanitation Standards Committee)
The Registered Sanitarians are first and foremost: ✔Correct Answer-Educators
Common microorganism associated with skin rash in whirlpools? ✔Correct Answer-
Pseudomonas aeruginosa
Complaining of extreme eye irritation by swimmers in a swimming pool may be: ✔Correct
Answer-Improper pH value
Workers in dental care may receive: ✔Correct Answer-Mercury Vapor poisoning
Most accidents that occur in the home to infants aged 1-4 is caused by: ✔Correct Answer-
Walking/falling
Most accidents around swimming pools: ✔Correct Answer-Drowning
Which can adversely effect the nerve cell? ✔Correct Answer-Neurotoxin
High rate of infection: ✔Correct Answer-Campylobacter jejuni -- usually found with
Salmonella, caused by contaminated chicken source.
Most enteric disease: (Enteric-related to the digestive system) ✔Correct Answer-Norwalk
virus
The LEAST amount of backfill over the absorption field should be: ✔Correct Answer-12 inches
(12-18'')
Best method to avoid UST (Underground Storage Tank)problems: ✔Correct Answer-
Prevention from corrosion
Filters will: ✔Correct Answer-Reduce stray radiation
,Swimmers ear is caused by: ✔Correct Answer-Pseudomonas
A principle for effective radiation protection: ✔Correct Answer-distance, time, shielding
Radiation could scatter and bounce off the ✔Correct Answer-wall, floor, ceiling
Know characteristics of alpha particles ✔Correct Answer-Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Do they have a high penetration rate? No
Minimum temperature for laundry in nursing home & health care facilities ✔Correct Answer-
160°F
Which test is initially used if water is suspected of contamination with fecal matter? ✔Correct
Answer-FECAL coliform.
Which one is the correct sequence? ✔Correct Answer-Coagulation-flocculation-
sedimentation-filtration
The minimum retention time recommended for a septic tank is: ✔Correct Answer-24 hours
Which filter is BEST to use for small communities in developing areas and in rural locations?
✔Correct Answer-Slow sand filter
Which filter is BEST for removal of Giardia cysts from low turbidity water ✔Correct Answer-
Slow sand filter (DE is best for swimming pools and industrial water supplies, not drinking
water)
Microbial pollution travels only a short distance through: ✔Correct Answer-Smooth clay
Backsiphonage may be prevented by all of the following methods except: ✔Correct Answer-
Hydrostatic loops
Which of the following is NOT REQUIRED at a water treatment plant? ✔Correct Answer-A Pre-
incident Plan
("A water treatment plant should have a well-equipped laboratory, certified operator, and
qualified chemist" -pg 232 of old Salvato book)
Giardia is classified as a ✔Correct Answer-protozoa
Which one is most commonly transmitted by food or water? ✔Correct Answer-Hepatitis A
, Entamoeba Histolytica is a ✔Correct Answer-Protozoa
Which is the preferred field test for a water system (for residual chlorine)? ✔Correct Answer-
DPD
Which is the measurement of the amount of light scattered by particles suspended in water test
sample? ✔Correct Answer-Nephelometric Turbidity Units (NTU)
Giardia is classified as a: ✔Correct Answer-Protozoa
Which is transmitted by food or water? ✔Correct Answer-Hepatitis A
Entamoeba Histolytica is classified as a? ✔Correct Answer-Protozoa
What is another name for swimmer's itch? ✔Correct Answer-Schistosoma spp
High concentrations of Nitrates in drinking water are: ✔Correct Answer-A possible cause of
methemoglobinemia (Blue Baby Syndrome)
Well head protection? ✔Correct Answer-casing, cap and surface seal
If a water sample is chlorinated: ✔Correct Answer-Use a bottle with Sodium Thiosulfate (acts
as a dechlor)
Water sampling technique when transporting to the lab? ✔Correct Answer-sterile glass or
plastic bottle is the most important (also using the right preservative is important)
Which steps are correct in stream cleaning? ✔Correct Answer-Stream pollution (organic) is
apparent along its length by a Zone of Degradation (just below the source), the Zone of Active
Decomposition, and the a Zone of Recovery or Self-Purification. O2 decreased in Zone of
Degredation suspended solids increased and sludge on the stream bottom.
Emergency water treatment? ✔Correct Answer-Boil for 1 minute. (100 degrees Celsius is 212
degrees Fahrenheit). Also can add suggested amount of chlorine per gallon of water and let sit
for 30 minutes. Can also use 8 drops of iodine tincture per quart of water. Can also use 1 tsp of
bleach per gallon of water
The composition of soil under an OSS drainfield is very important in the removal of both viruses
and bacteria. Which of the following soil conditions is most favorable for removal of viruses?
✔Correct Answer-Fine loamy sand over course sand or gravel
NTU are most commonly used to? ✔Correct Answer-Determine turbidity
