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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller papersbyjol. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
