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REHS Exam: Review Questions &Answers 100% Correct(GRADED A+)
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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...

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  • November 6, 2023
  • 23
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • rehs exam review questions answers 100 correct
  • rehs exam review stuvia 2023
  • ebl answer elevated blood level iron mcl in wat
  • iron mcl in water answer 4ppm

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REHS Exam: Review Questions &Answers 100% Correct(GRADED A+)
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
soil structure best to worst - ANSWER-gravel, sand, loam, clay
"new" chemical treatment method of insects - ANSWER-microencapsulation
spore forming bacteria - ANSWER-Bacillus and Clostridium spp.
use of pressurized piping method - ANSWER-test UST piping leaks
AIDS - ANSWER-progression after infection by HIV, incubation 1-3 months; lowers immune system
parts of incident command system - ANSWER-police department, fire department, search and rescue, hazmat incidences
trichinella control - ANSWER-cook meat to 137F for 15+ mins. (CA min is 145F); freeze to 5F for 20 days or -4F for 3 days.
advantages of bromine - ANSWER-excellent disinfectant, no odors in pool water, more effective over wider range of pH and temp
ideal water hardness/TDS - ANSWER-175-300ppm
saturation period - ANSWER-water placed in perc test hole for 24+ hours to saturate prior to perc test
deadly air pollution examples - ANSWER-Denora, PA; Meuse Valley, Belgium; London, England
flocculation - ANSWER-bacteria grow and oxidize in aeration tank, putrescible nutrients clump together
raw sludge - ANSWER-material that settles at bottom of aeration tank
indicator organism for medical autoclave testing - ANSWER-Bacillus stearothermophilus

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