Popular courses 'REHS' at REHS
REHS Study guides, Class notes & Summaries
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REHS Bundled Exams with Complete Solution | Verified Answers | 2024
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REHS Bundled Exams with Complete Solution | Verified Answers | 2024

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REHS Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct |Grade A
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REHS Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct |Grade A 
 
Q: Which of the following is non-toxic to aquatic organisms, a good viricide, and adds oxygen to treated 
 wastewater effluents? 
 a. ozone 
 b. calcium hypochlorine 
 c. sulfur dioxide 
 d. chlorine dioxide 
 
 
Answer: 
ozone 
 
 
 
Q: The typical limitation of use of the septic tank absorption field system is due to 
 a. cost 
 b. land use considerations 
 c. soil type and size requirements 
 d. a...
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REHS exam Questions with Complete Solutions /Verified Answers| Already PAssed
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Which of the following organisms are most resistant to unfavorable environmental conditions and 
indicate past of possibly intermittent pollution? 
a. fecal streptococci 
b. eschericha coli 
c. aerobacter aerogenes 
d. clostridium sporulates - ANSWER clostridium sporulates 
The presence of which of the following is most easily identified by laboratory analysis in water 
contaminated by feces? 
a. shigella dysenteriae 
b. coliform 
c. entamoeba histolytica 
d. salmonella typhosa - ANSWER coliform
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REHS Exam-2024| Questions and 100% Correct Answers
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unsanitary water related to ____% all morbidity in the world - ANSWER 80 
ground water - saturated zone - ANSWER where water is pulled from gravity due to openings in 
soil and rock 
surface water - vadose zone - ANSWER part of unsaturated zone 
artesian well - ANSWER well that goes thru confining layer 
flowing artesian well - ANSWER water above ground level due to pressure that makes it pass 
limiting layer
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REHS exam Study Terms and Questions with Complete Solutions /Verified Answers
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2 types of waste - ANSWER Organic- can be broken down 
Inorganic- cannot be broken down 
Oraganic Load - ANSWER BOD(dissolved solids)/ TSS( solids you can see) 
What does a NPDES require? - ANSWER All WWTP's have to have secondary treatment with 
80% BOD and TSS
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REHS Exam-Water| Questions and 100% Correct Answers
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Saturated zone - ANSWER all pore spaces filled with water 
allows water to travel 
Water table - ANSWER top of saturated zone 
Vadose zone - ANSWER part of unsaturated zone 
Flowing artesian well - ANSWER pressure causes water to rise above ground level 
Aquaclude - ANSWER Confining layer, rock or clay
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REHS Exam- NEHA RS| Questions and 100% Correct Answers
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An action authorized by law to restrict or prevent the movement of goods for the protection of 
public health, safety and welfare is called 
Choose one answer. 
a. an injunction 
b. an embargo 
c. an order to cease and desist 
d. a subpoena - ANSWER an embargo 
Field observations are not always reported in total because 
Choose one answer. 
a. the reported forms are usually inadequate 
b. the significance of the data is not understood 
c. the field staff are instructed to limit observations 
d. ...
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REHS exam Questions with Complete Solutions /Verified Answers
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. A factor or agent which increases the risk of cancer is known as a 
a. teratogen 
b. mutagen 
c. carcinogen 
d. fomite - ANSWER carcinogen 
2. The four major causes of death among all age groups of Americans include all of the 
following 
except. 
a. homicide 
b. accidents 
c. malignant neoplasms 
d. heart disease - ANSWER homicide
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REHS exam Study Questions with Complete Solutions /Verified Answers
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apeworm infection is probably due to: - ANSWER echinococcus 
most outdoor air emissions are derived from - ANSWER transportation 
indoor air quality depends on - ANSWER sources of air pollution in the building, sources of 
pollution outside the building, and the exchange of air between the inside and outside 
the total amount of oxygen demand in a sample (in mg/L) as measured by a specific strong 
chemical oxidation procedure is called the: - ANSWER COD
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REHS Exam with Complete Solutions /Verified Answers ( 166 Quizzes)
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What is the most common mosquito borne disease in the USA today? - ANSWER Encephalitis 
What is the primary vector and the infectious agent for Eastern Equine Encephalitis? - ANSWER 
Culisita species mosquito; Viral 
What is the primary vector for St. Louis Encephalitis, Western Equine Encephalitis, and West 
Nile Virus? - ANSWER Culex species mosquito
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REHS Exam- Food| Questions and 100% Correct Answers
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When conducting a food inspection, you want to look for ___________________ first - 
ANSWER foodborne illness factors first 
Define Good Retail Practice (GRP) - ANSWER housekeeping stuff that is not a foodborne illness 
factor 
A thin probe thermometer is used to measure what type of temperature? - ANSWER Internal 
food temperature
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REHS Exam- Pools| Questions and 100% Correct Answers
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% recirc from gutters/skimmers - ANSWER 60% 
Indirect or direct connection to water supply - ANSWER indirect 
how does deck and pool water drain to sewer - ANSWER air gap 
public pool chlorination - ANSWER automatic chlorinator 
Bacterial disease - ANSWER Staphylococcal 
streptococcal 
trachoma 
salmonella 
leptospira 
pseudomonas 
legionella 
shigella 
mycobacterium 
campylobacter
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