REHS/RS NEHA Study Guide - Revised August 2019 Updated 2024 (Graded A)
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REHS/RS NEHA
REHS/RS NEHA Study Guide - Revised
August 2019 Updated 2024 (Graded A)
When gas pipe is leaking, what methods would be used by the technician to identify the
exact point of leakage? -Answer-Using soap bubble solution
What is the graphic tool used by meteorologists to give a succinct view of how...
REHS/RS NEHA Study Guide - Revised August 2019 Updated 2024 (Graded A) When gas pipe is leaking, what methods would be used by the technician to identify the exact point of leakage? -Answer -Using soap bubble solution What is the graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location -Answer -Wind Rose What is the lowest portion of Earth's atmosphere called: -Answer -troposphere (a height of about 3.7 -6.2 miles (6 -10 km) What three viruses cause the largest number of known cases of illness through contaminated food: -Answer -Hepatitis, Rotavirus, Norovirus Shellfish poisoning is caused by a group of toxins produced by: -Answer -planktonic algae (dinoflagellates, in most cases) What is the most widely accepted detection method for the saxitoxins (Paralytic Shellfish Poisoning) around the world: -Answer -mouse bioassay (not as useful in Diarrhetic Shellfish Poisoning or Neurotoxic Shellfish Poisoning) Pufferfish (also called "fugu" or "blowfish") are thought of as a delicacy - even though they contain this toxin: -Answer -tetrodotoxin (in some types of pufferfish, some of the organs like the liver and skin contain tetrodotoxin; in some pufferfish the tox in is in the meat also; and some have no toxin at all) Compounds that cause neurological symptoms such as profuse sweating, coma, convulsions, hallucinations, excitement, depression, spastic colon -Answer -Neurotoxins Compounds that produce rapid, transient nausea, vomiting, abdominal cramping, and diarrhea: -Answer -gastrointestinal irritants mushrooms in this category generally are nontoxic and produce no symptoms, unless alcohol is consumed within 72 hours after eating them, in which case a short -lived, acute toxic syndrome is produced: -Answer -disulfiram ‐like toxins This is is a human illness caused by consumption of some subtropical and tropical marine finfish -Answer -Ciguatera fish poisoning (caused by consumption of subtropical and tropical marine finfish that have accumulated ciguatoxins through their diets) Powdered infant formula is not sterile, and its nutrients provide good conditions for the growth of -Answer -Cronobacter (after reconstitution) Travelers diarrhea is caused by which E. Coli (acronym)? -Answer -ETEC (Enterotoxigenic Escherichia coli) Cholera is caused by which bacteria -Answer -Vibrio (but not all Vibrio cause cholera) Q fever is caused by which food borne illness causing bacteria -Answer -Coxiella burnetii (the CDC has declared it a Category B potential bioterrorism agent) Plant FOODS that are cooked for hot holding shall be cooked to a temperature of -
Answer -135F How long must POULTRY, BALUTS, wild GAME ANIMALS (as specified under Subparagraphs 3 -201.17(A)(3) and (4)), stuffed FISH, stuffed MEAT, stuffed pasta, stuffed POULTRY, stuffed RATITES, or stuffing containing FISH, MEAT, POULTRY, or RATITES be cooked at 165 F? -Answer -instantaneous Fish to be served raw must be frozen how cold for how long? (except some Tuna and aquaculture fish) -Answer --4F for 7 days, -31 for 15 hours, frozen to -31F until solid then stored -4°F for 24 hours If immersion in hot water is used for SANITIZING in a manual operation, the temperature of the water shall be maintained at -Answer -171F or above Total alkalinity of swimming pools shall be maintained in the range of: -Answer -60-180 ppm (mg/l) the thick -walled, environmentally resistant structure released in the feces of infected animals that serves to transfer the infectious stages of sporozoan parasites (e.g., Cryptosporidium) to new hosts. -Answer -Oocyst Milligrams per Liter (mg/L) is the equivalent metric measure to: -Answer -parts per million (ppm) liable to ignite spontaneously on exposure to air -Answer -Pyrophoric "RATITE" means -Answer -a flightless bird such as an emu, ostrich, or rhea. Which organization requires cover for baking dough -Answer -BISSC (Baking Industry Sanitation Standards Committee) The Registered Sanitarians are first and foremost: -Answer -Educators Common microorganism associated with skin rash in whirlpools? -Answer -
Pseudomonas aeruginosa Complaining of extreme eye irritation by swimmers in a swimming pool may be: -
Answer -Improper pH value Workers in dental care may receive: -Answer -Mercury Vapor poisoning Most accidents that occur in the home to infants aged 1 -4 is caused by: -Answer -
Walking/falling Most accidents around swimming pools: -Answer -Drowning Which can adversely effect the nerve cell? -Answer -Neurotoxin This is usually found with Salmonella, caused by contaminated chicken source. High rate of infection: -Answer -Campylobacter jejuni What is the most enteric disease: -Answer -Norwalk virus The LEAST amount of backfill over the absorption field should be: -Answer -12-18 inches Best method to avoid UST (Underground Storage Tank)problems: -Answer -Prevent corrosion Filters will: -Answer -Reduce stray radiation Swimmers ear is caused by: -Answer -Pseudomonas A principle for effective radiation protection: -Answer -distance, time, shielding Radiation could scatter and bounce off the -Answer -wall, floor, ceiling Know characteristics of alpha particles -Answer -Are they made of protons & neutrons? Yes Is absorbed the most matter? No Do they have a high penetration rate? No Which test is initially used if water is suspected of contamination with fecal matter? -
Answer -FECAL coliform. Which one is the correct sequence? -Answer -Coagulation -flocculation -sedimentation -
filtration
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