REHS/RS NEHA Study Guide - Revised 9/23/18
When gas pipe is leaking, what methods would source.
be used by the technician to identify the exact
point of leakage? - ANSWER -Using soap
bubble solution Most enteric disease: (Enteric-related to the
digestive system) - ANSWER -Norwalk
virus
Which organization requires cover for baking
dough - ANSWER -BISSC (Baking Industry
Sanitation Standards Committee) The LEAST amount of backfill over the
absorption field should be: - ANSWER -12
inches (12-18'')
The Registered Sanitarians are first and
foremost: - ANSWER -Educators
Best method to avoid UST (Underground Storage
Tank)problems: - ANSWER -Prevention
Common microorganism associated with skin from corrosion
rash in whirlpools? - ANSWER -
Pseudomonas aeruginosa
Filters will: - ANSWER -Reduce stray
radiation
Complaining of extreme eye irritation by
swimmers in a swimming pool may be: -
ANSWER -Improper pH value Swimmers ear is caused by: - ANSWER -
Pseudomonas
Workers in dental care may receive: -
ANSWER -Mercury Vapor poisoning A principle for effective radiation protection: -
ANSWER -distance, time, shielding
Most accidents that occur in the home to infants
aged 1-4 is caused by: - ANSWER - Radiation could scatter and bounce off the -
Walking/falling ANSWER -wall, floor, ceiling
Most accidents around swimming pools: - Know characteristics of alpha particles -
ANSWER -Drowning ANSWER -Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Which can adversely effect the nerve cell? - Do they have a high penetration rate? No
ANSWER -Neurotoxin
Which test is initially used if water is suspected of
High rate of infection: - ANSWER - contamination with fecal matter? -
Campylobacter jejuni -- usually found with ANSWER -FECAL coliform.
Salmonella, caused by contaminated chicken
, REHS/RS NEHA Study Guide - Revised 9/23/18
Which one is the correct sequence? -
ANSWER -Coagulation-flocculation- Entamoeba Histolytica is a - ANSWER -
sedimentation-filtration Protozoa
The minimum retention time recommended for a Which is the preferred field test for a water
septic tank is: - ANSWER -24 hours system (for residual chlorine)? - ANSWER -
DPD
Which filter is BEST to use for small communities
in developing areas and in rural locations? - Which is the measurement of the amount of light
ANSWER -Slow sand filter scattered by particles suspended in water test
sample? - ANSWER -Nephelometric
Turbidity Units (NTU)
Which filter is BEST for removal of Giardia cysts
from low turbidity water - ANSWER -Slow
sand filter (DE is best for swimming pools and Giardia is classified as a: - ANSWER -
industrial water supplies, not drinking water) Protozoa
Microbial pollution travels only a short distance Which is transmitted by food or water? -
through: - ANSWER -Smooth clay ANSWER -Hepatitis A
Backsiphonage may be prevented by all of the Entamoeba Histolytica is classified as a? -
following methods except: - ANSWER - ANSWER -Protozoa
Hydrostatic loops
What is another name for swimmer's itch? -
Which of the following is NOT REQUIRED at a ANSWER -Schistosoma spp
water treatment plant? - ANSWER -A Pre-
incident Plan
High concentrations of Nitrates in drinking water
("A water treatment plant should have a well- are: - ANSWER -A possible cause of
equipped laboratory, certified operator, and methemoglobinemia (Blue Baby Syndrome)
qualified chemist" -pg 232 of old Salvato book)
Well head protection? - ANSWER -casing,
Giardia is classified as a - ANSWER - cap and surface seal
protozoa
If a water sample is chlorinated: -
Which one is most commonly transmitted by food ANSWER -Use a bottle with Sodium
or water? - ANSWER -Hepatitis A Thiosulfate (acts as a dechlor)
, REHS/RS NEHA Study Guide - Revised 9/23/18
ANSWER -Evidence of agricultural pollution
(Note: Ammonia in the water comes from
Water sampling technique when transporting to decomposition of organic matter and is evidence
the lab? - ANSWER -sterile glass or plastic of fresh water pollution.)
bottle is the most important (also using the right
preservative is important)
Microbial pollution only travels a short distance
through: - ANSWER -Sandy loam or clay
Which steps are correct in stream cleaning? - (most dense soil type)
ANSWER -Stream pollution (organic) is
apparent along its length by a Zone of
Degradation (just below the source), the Zone of which of these techniques is used to properly
Active Decomposition, and the a Zone of seal a drilled well to prevent contamination of the
Recovery or Self-Purification. O2 decreased in water supply? - ANSWER -Grouting
Zone of Degredation suspended solids increased
and sludge on the stream bottom.
One of the most common reasons for the
contamination of the water supply coming from a
Emergency water treatment? - ANSWER - drilled well through rock, clay or hardpan is; -
Boil for 1 minute. (100 degrees Celsius is 212 ANSWER -Failure to seal the well casing
degrees Fahrenheit). Also can add suggested properly, improper grouting
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 The flushometer valve is typically protected by? -
bleach per gallon of water ANSWER -A non-pressure type vacuum
breaker
The composition of soil under an OSS drainfield
is very important in the removal of both viruses
A physical cross connection? - ANSWER -
and bacteria. Which of the following soil
Is a connection which may permit/allow the flow
conditions is most favorable for removal of
from an unapproved (non-potable, ie. sewer)
viruses? - ANSWER -Fine loamy sand over water supply into a potable (approved) water
course sand or gravel supply.
NTU are most commonly used to? - Which type of filter is best to use to strain/remove
ANSWER -Determine turbidity amoebic cysts? - ANSWER -Diatomaceous
Earth Filter, Slow Sand and/or Cartridge
What causes water hardness? - ANSWER -
Minerals (Dissolved calcium and magnesium What makes water have a color? -
bicarbonates, sulfates, and chlorides) ANSWER -Dissolved Solids
Water containing Nitrates generally indicates? - The importance of surveys for new well water? -
When gas pipe is leaking, what methods would source.
be used by the technician to identify the exact
point of leakage? - ANSWER -Using soap
bubble solution Most enteric disease: (Enteric-related to the
digestive system) - ANSWER -Norwalk
virus
Which organization requires cover for baking
dough - ANSWER -BISSC (Baking Industry
Sanitation Standards Committee) The LEAST amount of backfill over the
absorption field should be: - ANSWER -12
inches (12-18'')
The Registered Sanitarians are first and
foremost: - ANSWER -Educators
Best method to avoid UST (Underground Storage
Tank)problems: - ANSWER -Prevention
Common microorganism associated with skin from corrosion
rash in whirlpools? - ANSWER -
Pseudomonas aeruginosa
Filters will: - ANSWER -Reduce stray
radiation
Complaining of extreme eye irritation by
swimmers in a swimming pool may be: -
ANSWER -Improper pH value Swimmers ear is caused by: - ANSWER -
Pseudomonas
Workers in dental care may receive: -
ANSWER -Mercury Vapor poisoning A principle for effective radiation protection: -
ANSWER -distance, time, shielding
Most accidents that occur in the home to infants
aged 1-4 is caused by: - ANSWER - Radiation could scatter and bounce off the -
Walking/falling ANSWER -wall, floor, ceiling
Most accidents around swimming pools: - Know characteristics of alpha particles -
ANSWER -Drowning ANSWER -Are they made of protons &
neutrons? Yes
Is absorbed the most matter? No
Which can adversely effect the nerve cell? - Do they have a high penetration rate? No
ANSWER -Neurotoxin
Which test is initially used if water is suspected of
High rate of infection: - ANSWER - contamination with fecal matter? -
Campylobacter jejuni -- usually found with ANSWER -FECAL coliform.
Salmonella, caused by contaminated chicken
, REHS/RS NEHA Study Guide - Revised 9/23/18
Which one is the correct sequence? -
ANSWER -Coagulation-flocculation- Entamoeba Histolytica is a - ANSWER -
sedimentation-filtration Protozoa
The minimum retention time recommended for a Which is the preferred field test for a water
septic tank is: - ANSWER -24 hours system (for residual chlorine)? - ANSWER -
DPD
Which filter is BEST to use for small communities
in developing areas and in rural locations? - Which is the measurement of the amount of light
ANSWER -Slow sand filter scattered by particles suspended in water test
sample? - ANSWER -Nephelometric
Turbidity Units (NTU)
Which filter is BEST for removal of Giardia cysts
from low turbidity water - ANSWER -Slow
sand filter (DE is best for swimming pools and Giardia is classified as a: - ANSWER -
industrial water supplies, not drinking water) Protozoa
Microbial pollution travels only a short distance Which is transmitted by food or water? -
through: - ANSWER -Smooth clay ANSWER -Hepatitis A
Backsiphonage may be prevented by all of the Entamoeba Histolytica is classified as a? -
following methods except: - ANSWER - ANSWER -Protozoa
Hydrostatic loops
What is another name for swimmer's itch? -
Which of the following is NOT REQUIRED at a ANSWER -Schistosoma spp
water treatment plant? - ANSWER -A Pre-
incident Plan
High concentrations of Nitrates in drinking water
("A water treatment plant should have a well- are: - ANSWER -A possible cause of
equipped laboratory, certified operator, and methemoglobinemia (Blue Baby Syndrome)
qualified chemist" -pg 232 of old Salvato book)
Well head protection? - ANSWER -casing,
Giardia is classified as a - ANSWER - cap and surface seal
protozoa
If a water sample is chlorinated: -
Which one is most commonly transmitted by food ANSWER -Use a bottle with Sodium
or water? - ANSWER -Hepatitis A Thiosulfate (acts as a dechlor)
, REHS/RS NEHA Study Guide - Revised 9/23/18
ANSWER -Evidence of agricultural pollution
(Note: Ammonia in the water comes from
Water sampling technique when transporting to decomposition of organic matter and is evidence
the lab? - ANSWER -sterile glass or plastic of fresh water pollution.)
bottle is the most important (also using the right
preservative is important)
Microbial pollution only travels a short distance
through: - ANSWER -Sandy loam or clay
Which steps are correct in stream cleaning? - (most dense soil type)
ANSWER -Stream pollution (organic) is
apparent along its length by a Zone of
Degradation (just below the source), the Zone of which of these techniques is used to properly
Active Decomposition, and the a Zone of seal a drilled well to prevent contamination of the
Recovery or Self-Purification. O2 decreased in water supply? - ANSWER -Grouting
Zone of Degredation suspended solids increased
and sludge on the stream bottom.
One of the most common reasons for the
contamination of the water supply coming from a
Emergency water treatment? - ANSWER - drilled well through rock, clay or hardpan is; -
Boil for 1 minute. (100 degrees Celsius is 212 ANSWER -Failure to seal the well casing
degrees Fahrenheit). Also can add suggested properly, improper grouting
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 The flushometer valve is typically protected by? -
bleach per gallon of water ANSWER -A non-pressure type vacuum
breaker
The composition of soil under an OSS drainfield
is very important in the removal of both viruses
A physical cross connection? - ANSWER -
and bacteria. Which of the following soil
Is a connection which may permit/allow the flow
conditions is most favorable for removal of
from an unapproved (non-potable, ie. sewer)
viruses? - ANSWER -Fine loamy sand over water supply into a potable (approved) water
course sand or gravel supply.
NTU are most commonly used to? - Which type of filter is best to use to strain/remove
ANSWER -Determine turbidity amoebic cysts? - ANSWER -Diatomaceous
Earth Filter, Slow Sand and/or Cartridge
What causes water hardness? - ANSWER -
Minerals (Dissolved calcium and magnesium What makes water have a color? -
bicarbonates, sulfates, and chlorides) ANSWER -Dissolved Solids
Water containing Nitrates generally indicates? - The importance of surveys for new well water? -
