RS-REHS NEHA ACTUAL EXAM 300 QUESTIONS AND VERIFIED

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RS-REHS NEHA ACTUAL EXAM 300 QUESTIONS AND VERIFIED

SOLUTIONS AGRADE LATEST UPDATE

What is the importance of using biodegradable plastics for sanitary landfills? - ANSWER✔✔Not to contaminate the groundwater

What is the EPA's Toxic Substances Control Act? - ANSWER✔✔Regulates the production and use of chemical substances that may present an unreasonable risk of injury to health and/or the environment.

During an agricultural waste incident we can experience all of the following except? - ANSWER✔✔Sulfuric Acid

During an agricultural waste incident we can experience all of the following? - ANSWER✔✔methane, hydrogen sulfide, carbon dioxide, ammonia)

Which is the best environmental protection for solid waste disposal? - ANSWER✔✔Upper and lower lining for leachate draining

What is the best for an UST (Underground Storage Tank) - ANSWER✔✔Protect it from corrosion

A small quantity generator of hazardous wastes is considered to be one that generates how much hazardous waste in a calendar month? - ANSWER✔✔100kg to 1000kg)

How long can a maximum of 6000 kg of hazardous wastes be stored on site? - ANSWER✔✔6 months 1 / 4

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In good soils with appropriate geology, landfill sites should be at least how far from streams, lakes or other surface bodies of water? - ANSWER✔✔200 feet

The direction of operation of a sanitary landfill should be? - ANSWER✔✔WITH the prevailing wind

Which of the following is not one of the four characteristics of hazardous wastes as defined by the EPA? - ANSWER✔✔Can be either radioactivity and combustibility

After a landfill site is closed it should be covered with at least how much soil/material/earth? - ANSWER✔✔2 feet (NOTE: Daily cover of: 6-24 inches; 2ft final cover)

According to RCRA (Resource Conservation and Recovery Act) how are household hazardous wastes disposed of? - ANSWER✔✔Household hazardous wastes is exempt

Which of the following have little penetrating power and are normally a hazard to one's health only in the form of internal radiation received through ingestion, inhalation, or open wounds? - ANSWER✔✔Alpha Particle

The rate at which atoms of a radioactive source disintegrate are measured in? - ANSWER✔✔Curies

What is a CT Scanner - ANSWER✔✔A combination of a computer and X-rays

A principle which affects the external radiation protection includes? - ANSWER✔✔Distance, Shielding, and Time of Exposure (Choose ALL OF THE ABOVE) 2 / 4

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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

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4 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.)

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)

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