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REHS Exam Review Questions and Complete Solutions Graded A+

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REHS Exam Review Questions and Complete Solutions Graded A+

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  • September 16, 2024
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REHS Exam
Review Questions
and Complete
Solutions Graded
A+
Denning [Date] [Course title]

,EBL - Answer: elevated blood level



iron MCL in water - Answer: 4ppm



radon source - Answer: uranium



pH of wastewater - Answer: 6-9 (6.5-8.5avg)



nematodes - Answer: ancylostoma/necator (hookworms), anisakiasis (roundworm), trichinella
(roundworm)



cestodes - Answer: taenia solium and saginata (tapeworms)



trematodes - Answer: schistosoma



12 hour incubation - Answer: Clostridium perfrigens



2 hour incubation - Answer: S. aureus



condemn - Answer: pronounce unfit for use, commonly by official action



embargo - Answer: impound or prohibit departure of a particular item



seizure - Answer: act of taking possession suddenly and lawfully



food associated with Staph. food intoxication - Answer: RTE custard pastries



preventing staph. - Answer: employee hygiene/refrigerating food after prep

,action after blue ring in milk test - Answer: draw blood sample for further testing



death rate when 80 people get infected and 5 die, from area of 8500. - Answer: 531.25 = 5/8 * 8500



what are hydrocarbons characterized by? - Answer: H-C bonding



Where should the vent of heating units be placed? - Answer: Near the heating unit.



Condition that will not contribute to good lighting in class? - Answer: Black board with dull finish.



Product when methane from a landfill leaches into soil and comes into contact with aquifer? - Answer:
hydrolysis of water



Section in hazardous waste for treatment and disposal? - Answer: Federal chapter 42



Primary function of septic tank? - Answer: sedimentation of solids and anaerobic bacteria digestion



sanitary landfill area geological qualities - Answer: location, land area, depth of lock and ground water,
cover material availability, and fire protection



soil depth definition - Answer: top of mineral soil to bedrock



soil profile definition - Answer: lateral face of soil horizon (what soil consists of); can indicate level of
ground water and soil composition materials.



landfill final cover - Answer: 24 inches



type of bacteria found in early stage of closed landfill - Answer: aerobic (saprophytic)

, RCRA resource conservation and recovery act - Answer: regulatory system for storage, treatment, and
disposal of hazardous wastes to protect human health and environment



first step of perc test - Answer: soil profile



veterinarian's and workers' disease - Answer: Brucellosis and anthrax



nickname for tetanus - Answer: lockjaw



fomite - Answer: inanimate object that can harbor infectious agents



purpose of Babcock test - Answer: test butter fats



substance body is more likely to absorb with alcohol in blood? - Answer: phenols



cold food vending machine temp rises above 45F - Answer: automatic cut-off takes place 30 minutes
past loading time



electrostatic precipitator - Answer: produces negatively charged ions to attract positively charged
particulates and settle them out via gravity.



ratio of two sound levels is 100:1, sounds differ by - Answer: 20db



sources of lead in house water supplies - Answer: lead solder joints, lead pipe goosenecks



minutes to hours FBIs - Answer: B. cereus (toxin), scombroid food poisoning, PSP



S. aureus incubation time - Answer: 2-4 hours



incubation time of encephalitis diseases? - Answer: 5-15 days

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