NEHA RS-REHS EXAM 2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
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A principle which affects the external radiation protection includes? - ANSWER✔✔Distance, Shielding, and Time of Exposure (Choose ALL OF THE ABOVE) Sewage consists of over 99.9% by weight of what? - ANSWER✔✔Water Soils with a gradient exceeding 10% have severe limitations for the operation of subsurface disposal fields? - ANSWER✔✔TRUE What is the recommended detention time for wastewater in a septic tank? - ANSWER✔✔24-72 Hours.When is an alternative wastewater treatment systems are considered? - ANSWER✔✔Space is limited and close proximity to surface water Which soil characteristic is unsuitable for subsurface absorption of wastewater? - ANSWER✔✔Mottled or redox Wastewater is the used water which comes from a home, business, or community and its strength is measured in what? - ANSWER✔✔BOD, COD and Suspended solids (choose ALL OF THE ABOVE) Which of the following are least important in reducing sewage to soil, liquids and/ or gases? - ANSWER✔✔Anaerobic bacteria The traditional absorption field should be laid in trenches not more than how far below the ground surface? - ANSWER✔✔36 inches from the ground surface to the bottom of the trench material What is BOD - ANSWER✔✔BOD - Biochemical Oxygen Demand (is the amount of dissolved oxygen that must be present in water in order in order for microorganisms to decompose the organic matter in the water. Used as a measure of the degree of pollution.) 1 / 3
Which complaint need response first? - ANSWER✔✔Report of illness and absence at day care Vibrio parahaemolyticus is most commonly found in - ANSWER✔✔Shellfish Amoebic dysentery is caused by - ANSWER✔✔protozoa / parasite vector for encephalitis (Chikungunya) - ANSWER✔✔Mosquitoes Vector for Dengue Fever - ANSWER✔✔Mosquitoes Typhoid fever is caused by - ANSWER✔✔The housefly (Musca Domestica) Family has bites, itch and bump which is caused by all EXCEPT - ANSWER✔✔tick does not create itching bumps (louse, bedbug and mites all create itching bumps) Humidifier in nursery - Concern for sanitarian because - ANSWER✔✔moisture in the air to increase bacteria growth and cause infection, mold can grow Psychrophiles thrive in which temperatures - ANSWER✔✔50F (or lowest temp given) What is a psittacosis - ANSWER✔✔Parrott This can withstand high heat for extended period so is perfect for testing the autoclave. - ANSWER✔✔Bacillus stearothermophilus How do you test for Giardia - ANSWER✔✔Molecular testing Order from most important to least: Core, Priority, Priority foundation - ANSWER✔✔Priority, Priority foundation, Core What is the purpose of Emergency Guide Book from Department of Transportation? - ANSWER✔✔Quickly identify emergency hazards; deal with Transportation hazards within the first 30 minutes Which food can be saved after a flood: - ANSWER✔✔sealed canned food or retort Pouches What pest or vector is NOT a Health concern after a flood - ANSWER✔✔Spider What should the Cyanuric acid level be in a swimming pool - ANSWER✔✔30-50mg/L What should the Chlorine level be in a swimming pool? - ANSWER✔✔1 ppm in pools In a pool, which disinfectant is in active oxidation: - ANSWER✔✔Sodium hypochlorite (bleach) Fill and draw wading pool should be - ANSWER✔✔prohibited 2 / 3
Calculation for pool turnover rate - ANSWER✔✔Pool Volume/Flow rate X 60 (minutes in hour)= Turnover Rate What temperature should you store pool test chemicals - ANSWER✔✔Store in a "cool" location and keep away from heat What temp do you store Pooled eggs that have not been treated for Salmonella - ANSWER✔✔41F When you store food in refrigerator you should - ANSWER✔✔ensure air space around food If Milk was heated to 198-212 F it considered to be - ANSWER✔✔Pasteurized What is the Sanitizer chlorine - ANSWER✔✔no Foodborne illness starts less than 1 hour after eating - ANSWER✔✔chemical Who control the shellfish tag - ANSWER✔✔FDA- National Shellfish Sanitation Program Is the date on milk carton required - ANSWER✔✔No When you transfer food into another container to hold for more than 24 hours, must label new container with: - ANSWER✔✔Use by date What happens to toxins in forzen foods - ANSWER✔✔Toxins are not affected You can see frozen food has thawed and been refrozen in these ways: - ANSWER✔✔ice crystal, ice melt, food frozen in a block What is the critical control point in food preparation? - ANSWER✔✔A step when control is essential to prevent or eliminate or reduce a food safety hazard What is a Control Point - ANSWER✔✔Any step at which biological, chemical, or physical factors can be controlled.What item is NOT REQUIRED at a handwashing sink? - ANSWER✔✔Sanitary towels Moderating the frying temperature from -4F to 25F to aid in deep frying is called: - ANSWER✔✔Slacking (the process of allowing block-frozen food to gradually increase from a temperature of -10°F (-23°C) to 25°F (-4°C) in preparation for deep-fat frying Meat inspection corresponds with which shape - ANSWER✔✔circle Distance from sewage disposal and water line in mobile home - ANSWER✔✔10ft When placing a septic tank what is NOT important? - ANSWER✔✔Distance to bedrock What is NOT a good way of inspecting for a seasonal water table levels? - ANSWER✔✔bored hole
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