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REHS RS NEHA STUDY GUIDE - REVISED 9 2018|GRADED A+
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REHS/RS NEHA STUDY GUIDE -REVISED 9/2018
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.
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