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Grade A
QUESTION
How deep should the absorption beds and trenches in a drainfield be for a septic system? a. Deep (12 ft) and sloped b. shallow (1- 5 ft) and level Answer: shallow (1- 5 ft) and level
QUESTION
What formation should an absorption beds be with a water table of 6 inches? Answer: Mounded
QUESTION
How often should a septic tank be inspected? a. annually b. biannually c. every 5 years Answer: biannually
QUESTION
How often should septic tank be pumped? a. every 3 - 5 years, depending on use
b. everyday c. never d. annually Answer: every 3 - 5 years, depending on use
QUESTION
A septic tank is found to be sitting in a high water table, what is a possible consequence? Answer: The tank may float or tilt
QUESTION
A newly installed septic system can be used within: a. 24 hours b. 6 months c. immediately Answer: immediately
QUESTION
Sludge can be disposed of in all of the following ways except: a. composting b. landfill c. ocean dumping d. incineratino Answer: ocean dumping
Answer: total coliform or the COLILERT test
QUESTION
Which produces the most BOD: a. small office building b. restaurant c. trailer park d. daycare/school Answer: restaurant
QUESTION
Lime coagulation, mixed media filtration and activated carbon filtration will greatly reduce: Answer: EPA priority pollutants
QUESTION
Plants absorb certain constituents of wastewater. Using wastewater for irrigation of consumable plant products may present a health hazard to humans if the water contains: Answer: Cadmium
QUESTION
The reliability and interpretation of the soil percolation test are affected by all of the following except: a. evaluation of site investigation, soil profile, and suitability b. size or diameter of the test hole c. shape of the test hole
d. saturation of soil Answer: shape of the test hole
QUESTION
Which soil is least suitable for subsurface absorption of waste water? a. red b. yellow c. blue d. mottled brown Answer: mottled brown
QUESTION
The most effective method discovered for running a percolation test is to make tests in holes that have been: Answer: filled with water overnight
QUESTION
Which travel further in a wastewater treatment plant drain field: a. helminth b. bacteria c. virus d. protozoa Answer: virus
a. Dig a trench and have lime to cover the odor b. Privy toilet with a fluid reservoir c. Pit or privy toilet with a dug out hole d. Bucket with sealed container and sanitized disposable bags e D and C above Answer: D and C above
QUESTION
How many porta potties need to be available for a festival or gathering of people? Answer: 1 seat per 100
QUESTION
A fly can emerge from how many inches of compacted soil? Answer: 6 inches
QUESTION
What is the major constituent of landfills? Answer: Paper
QUESTION
The fresh water supply line to the pool must: a. have a direct solid connection to the public water supply b. fill to the pool through an approved air gap
c. have an approved pump hooked to the public water supply line to suck the water to the pool for fast fills d. none of the above Answer: fill to the pool through an approved air gap
QUESTION
In large pools with outlets more than 5 feet from the end wall, pool inlets should be located every: a. 30 feet b. 10 feet c. 20 feet d. 5 feet Answer: 20 feet
QUESTION
Pool inlets should be located a minimum of 10 inches to 15 inches below the water line to: a. ensure good mixing b. prevent clogging c. prevent loss of disinfectant d. ensure mixing of pH additives poured into the pool Answer: prevent loss of disinfectant
QUESTION
When chlorine is added to water: a. one acid is formed b. two acids are formed c. HCL is considered the primary product
QUESTION
is used to reduce the chlorine loss by protecting the free chlorine in the pool from the sun's ultraviolet rays, reducing the amount of chlorine needed to maintain proper sanitizer levels. Answer: Cyanuric Acid
QUESTION
In Utah, concentration of cyanuric acid in the water must be at least milligrams per liter, but may not exceed 100 mg per liter Answer: 10, 100
QUESTION
Areas exposed to high levels of sunlight should maintain - ppm cyanuric acid Answer: 60 - 80
QUESTION
Under normal sunlight conditions - ppm cyanuric acid should be maintained Answer: 30 - 50
QUESTION
Diarrhea in a pool, chlorine level is raised to what and for how long? a. 3 ppm, 19 minutes b. 20 ppm, 12.75 hours
c. 7 ppm, 120 hours d. 10 ppm, 72 hours Answer: 20 ppm, 12.75 hours
QUESTION
Which chemical will lower pH in a pool? a. ozone b. dichlor c. trichlor d. calcium hypochlorite Answer: trichlor
QUESTION
Which is the slowest pool filter? Answer: Cartridge
QUESTION
What is best for a leaking septic tank? a. replace every 5 years b. cover with a metal lining c. inject seams with an epoxy resin Answer: inject seams with an epoxy resin
Answer: use as normal
QUESTION
What is the minimum distance separation between a sewer line and a water line in a mobile home park? a. 3 feet b. 5 feet c. 10 feet d. 15 feet Answer: 10 feet
QUESTION
A 1000 gallon septic tank should hold wastewater for how long? Answer: 12 hours with 24 - 72 recommended
QUESTION
Blood lead levels, CDC recommend getting checked at: a. 3 ug/dl b. 5 ug/dl c. 10 ug/dl d. 15 ug/dl Answer: 5 ug/dl
QUESTION
In children, blood lead levels more than are associated with decreased intellectual performance and other adverse health events: a. Any lead in blood leads to health defects b. 5 ug/l c. 10 ug/l d. 45 ug/dl Answer: Any lead in blood leads to health defects
QUESTION
Vent gases combined with high moisture inside a chimney will form: a. a glass-like glaze b. hydrochloric acid c. sodium chloride d. sulfuric acid Answer: sulfuric acid
QUESTION
Lead poisoning is commonly associated with children living in homes built before: a. 1980 b. 1978 c. 1950 d. 1940 Answer: 1978
QUESTION
Concentrations of Radon from Environmental Protection Agency's (EPA) action level is:
Answer: Get info off the label
QUESTION
Respirators are inspected and approved by? a. OSHA b. NIOSH c. EPA d. CDC Answer: NIOSH
QUESTION
When inspecting medical wastes, an REHS should look for? a. Sharps containers and red bags b. Sterilized needles and sharps containers c. Sterilized equipment and white bags Answer: sharps containers and red bags
QUESTION
Trichloroethylene is used in the industry is what? a. gasoline b. dry cleaning Answer: dry cleaning
QUESTION
What is in crankcase oil? Answer: Heavy metals and additives
QUESTION
People in a building are complaining of respiratory issues when in a specific building, what is the most likely cause? a. HVAC b. outside air pollution c. presence of a disease in a community Answer: HVAC
QUESTION
Why are personal monitors better than area monitors? Answer: They are more accurate for exposure
QUESTION
Proper term for disinfectant that is used on skin? a. antiseptic b. sanitizers c. disinfectants Answer: antiseptic
Staph and Hep B or C
QUESTION
What type of hepatitis is transmitted fecal/oral? Answer: Hep A and E
QUESTION
A dirty bar of soap is likely to be considered a/an? a. vehicle b. fomite c. aggregate Answer: fomite
QUESTION
How many tenets are there to establish a healthy home? a. 5 b. 6 c. 7 d. 8 Answer: 7
QUESTION
How is giardiasis transmitted? Answer:
Person to person transfer from infected feces
QUESTION
Silicosis is caused by breathing: a. too much dust into lungs b. microscopic amount of asbestos in lung lining c. repeated and lengthy exposure to tiny bits of silica dust Answer: repeated and lengthy exposure to tiny bits of silica dust
QUESTION
All of the following affect the development of silicosis except? a. size of particles b. type of particles c. size of asbestos particles d. size of silicate particles Answer: size of asbestos particles
QUESTION
Which part of the body does typhoid fever affect? Answer: circulatory
QUESTION
What genus of mosquito is most likely to carry West Nile Virus? Answer:
