REHS CORE REVIEW LATEST QUESTIONS AND
ANSWERS RATED A+
✔✔25. 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
a. nitrates
b. iron
c. cadmium
d. chlorides - ✔✔cadmium
✔✔26. A measure of the relativity constant rate at which clear water, maintained at a
relatively constant depth, will
seep out of a standard size test hole that has been previously saturated is the
a. hydraulic conductivity
b. soil permeability test
c. soil percolation test
d. Baird-Parker saturation test - ✔✔soil percolation test
✔✔27. The ability of a soil to absorb and allow water and air to pass through is related
to all of the following except
a. chemical composition
b. texture
c. cation exchange capacity
d. granular structure - ✔✔cation exchange capacity
✔✔28. Bacteria that require oxygen for their growth are called
a. anaerobic bacteria
b. aerobic bacteria
c. viruses
d. fungi - ✔✔aerobic bacteria
,✔✔29. The examination of the stool for cysts and/or ova is the common diagnosis for
which food borne pathogen?
A. Parasitic infections
B. Viral infections
C. Bacterial infections
D. Non-infectious agents
E. None of the above - ✔✔parasitic infections
✔✔30. If you are counseling a pregnant patient, what foods should she avoid to
decrease her risk for listeriosis?
A. Honey
B. Fresh soft cheese
C. Sauerkraut
D. Cooked mushrooms
E. Caffeine - ✔✔fresh soft cheese
✔✔31. Which scenario(s) may present a risk to immunocompromized patients.
A. Animals in the Home Use
B. Coming in contact with individuals after they have been given a live virus vaccine.
C. Eating raw oysters
D. Drinking non-pasteurized juices or unchlorinated water
E. All of the above - ✔✔all of the above
✔✔32. What food borne illness may present with chocolate-brown colored blood?
A. Nitrite poisoning
B. Organophosphate poisoning
C. Botulism
D. Mercury poisoning
E. Tin poisoning - ✔✔nitrite poisoning
✔✔33. Approximately how many people die per year in the U.S. of food-borne illness?
A. 5,000
B. 100
C. 9,000
D. 100,000
E. 50 - ✔✔5,000
✔✔34. In the U.S. the pioneering Pure Food and Drug Act was passed in 1906
stimulated by journalistic exposures of inferior conditions in the food industry and by
Upton Sinclair's 1906 novel titled?
A. Silent Spring
B. The Coming Plague
,C. To Kill a Mockingbird
D. The Jungle
E. The Catcher in the Rye - ✔✔The Jungle
✔✔35. Which bacteria in large numbers can survive extended storage in cheddar
cheese?
a) Salmonella
b) Brucella sp.
c) Shigella
d) Clostridium perfringens - ✔✔Salmonella
✔✔36. Which of the following is non-toxic to aquatic organisms, a good viricide, and
adds oxygen to treated
wastewater effluents?
a. ozone
b. calcium hypochlorine
c. sulfur dioxide
d. chlorine dioxide - ✔✔ozone
✔✔37. The typical limitation of use of the septic tank absorption field system is due to
a. cost
b. land use considerations
c. soil type and size requirements
d. appearance - ✔✔soil type and size requirements
✔✔38. Which of the following is true about disposal of animal wastes?
a. If wet manure is plowed under, fly eggs present will not hatch.
b. Composting of manure takes advantage of the inclination that larvae move out and
away from moist
manure in search of a dry place to pupate.
c. Where a small number of animals are kept, the manure should be collected once a
week.
d. Odors associated with the handling and disposal of these wastes do not determine
the disposal method
or its location. - ✔✔composting of manure takes advantage of the inclination that larvae
move out and away from moist manure in search of a dry place to pupate
✔✔39. Resource recovery and reduction of solid wastes should start
a. at the point of generation
b. at the sanitary landfill
c. in the home
d. at the transfer station - ✔✔at the point of generation
, ✔✔40. ______can be recovered from refuse by burning it in a refractory lined
incineration or water-wall incinerator.
a. glass
b. aluminum
c. ferrous metal
d. energy - ✔✔energy
✔✔41. Incinerators are rated in terms of
a. percent fuel capacity per day
b. BTU's per day
c. tons of burnable waste per day
d. cubic feet of solid waste per day. - ✔✔tons of burnable waste per day
✔✔42. The three essentials for combustion in an incinerator are
a. temperature, time and heat
b. time, temperature and moisture
c. temperature, heat and fuel
d. time, temperature and turbulence - ✔✔time, temperature and turbulence
✔✔43. The second step of the combustion process in an incinerator requires a high
temperature of at least
a. 1500o to 1600oF
b. 1500o to 1800o F
c. 1900o to 2000o F
d. 1800o to 1900o F - ✔✔1500 to 1800 F
✔✔44. A landfill site should not
a. be located near a major highway
b. be given and attractive entrance and approach road
c. house equipment on site
d. be inexcessible during bad weather conditions - ✔✔be inexcessible during bad
weather conditions
✔✔45. Determining what a landfill can be used for when completed should be planned
a. when the landfill is half full
b. before you build the landfill
c. when the landfill is full
d. any time during the operation of the landfill - ✔✔before you build the landfill
✔✔46. Hazardous waste is governed by the
a. Clean Air Act
b. Occupational Safety and Health Act
c. Resource and Conservation and Recovery Act
d. Food and Drug Act - ✔✔Resource and Conservation and Recovery Act
ANSWERS RATED A+
✔✔25. 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
a. nitrates
b. iron
c. cadmium
d. chlorides - ✔✔cadmium
✔✔26. A measure of the relativity constant rate at which clear water, maintained at a
relatively constant depth, will
seep out of a standard size test hole that has been previously saturated is the
a. hydraulic conductivity
b. soil permeability test
c. soil percolation test
d. Baird-Parker saturation test - ✔✔soil percolation test
✔✔27. The ability of a soil to absorb and allow water and air to pass through is related
to all of the following except
a. chemical composition
b. texture
c. cation exchange capacity
d. granular structure - ✔✔cation exchange capacity
✔✔28. Bacteria that require oxygen for their growth are called
a. anaerobic bacteria
b. aerobic bacteria
c. viruses
d. fungi - ✔✔aerobic bacteria
,✔✔29. The examination of the stool for cysts and/or ova is the common diagnosis for
which food borne pathogen?
A. Parasitic infections
B. Viral infections
C. Bacterial infections
D. Non-infectious agents
E. None of the above - ✔✔parasitic infections
✔✔30. If you are counseling a pregnant patient, what foods should she avoid to
decrease her risk for listeriosis?
A. Honey
B. Fresh soft cheese
C. Sauerkraut
D. Cooked mushrooms
E. Caffeine - ✔✔fresh soft cheese
✔✔31. Which scenario(s) may present a risk to immunocompromized patients.
A. Animals in the Home Use
B. Coming in contact with individuals after they have been given a live virus vaccine.
C. Eating raw oysters
D. Drinking non-pasteurized juices or unchlorinated water
E. All of the above - ✔✔all of the above
✔✔32. What food borne illness may present with chocolate-brown colored blood?
A. Nitrite poisoning
B. Organophosphate poisoning
C. Botulism
D. Mercury poisoning
E. Tin poisoning - ✔✔nitrite poisoning
✔✔33. Approximately how many people die per year in the U.S. of food-borne illness?
A. 5,000
B. 100
C. 9,000
D. 100,000
E. 50 - ✔✔5,000
✔✔34. In the U.S. the pioneering Pure Food and Drug Act was passed in 1906
stimulated by journalistic exposures of inferior conditions in the food industry and by
Upton Sinclair's 1906 novel titled?
A. Silent Spring
B. The Coming Plague
,C. To Kill a Mockingbird
D. The Jungle
E. The Catcher in the Rye - ✔✔The Jungle
✔✔35. Which bacteria in large numbers can survive extended storage in cheddar
cheese?
a) Salmonella
b) Brucella sp.
c) Shigella
d) Clostridium perfringens - ✔✔Salmonella
✔✔36. Which of the following is non-toxic to aquatic organisms, a good viricide, and
adds oxygen to treated
wastewater effluents?
a. ozone
b. calcium hypochlorine
c. sulfur dioxide
d. chlorine dioxide - ✔✔ozone
✔✔37. The typical limitation of use of the septic tank absorption field system is due to
a. cost
b. land use considerations
c. soil type and size requirements
d. appearance - ✔✔soil type and size requirements
✔✔38. Which of the following is true about disposal of animal wastes?
a. If wet manure is plowed under, fly eggs present will not hatch.
b. Composting of manure takes advantage of the inclination that larvae move out and
away from moist
manure in search of a dry place to pupate.
c. Where a small number of animals are kept, the manure should be collected once a
week.
d. Odors associated with the handling and disposal of these wastes do not determine
the disposal method
or its location. - ✔✔composting of manure takes advantage of the inclination that larvae
move out and away from moist manure in search of a dry place to pupate
✔✔39. Resource recovery and reduction of solid wastes should start
a. at the point of generation
b. at the sanitary landfill
c. in the home
d. at the transfer station - ✔✔at the point of generation
, ✔✔40. ______can be recovered from refuse by burning it in a refractory lined
incineration or water-wall incinerator.
a. glass
b. aluminum
c. ferrous metal
d. energy - ✔✔energy
✔✔41. Incinerators are rated in terms of
a. percent fuel capacity per day
b. BTU's per day
c. tons of burnable waste per day
d. cubic feet of solid waste per day. - ✔✔tons of burnable waste per day
✔✔42. The three essentials for combustion in an incinerator are
a. temperature, time and heat
b. time, temperature and moisture
c. temperature, heat and fuel
d. time, temperature and turbulence - ✔✔time, temperature and turbulence
✔✔43. The second step of the combustion process in an incinerator requires a high
temperature of at least
a. 1500o to 1600oF
b. 1500o to 1800o F
c. 1900o to 2000o F
d. 1800o to 1900o F - ✔✔1500 to 1800 F
✔✔44. A landfill site should not
a. be located near a major highway
b. be given and attractive entrance and approach road
c. house equipment on site
d. be inexcessible during bad weather conditions - ✔✔be inexcessible during bad
weather conditions
✔✔45. Determining what a landfill can be used for when completed should be planned
a. when the landfill is half full
b. before you build the landfill
c. when the landfill is full
d. any time during the operation of the landfill - ✔✔before you build the landfill
✔✔46. Hazardous waste is governed by the
a. Clean Air Act
b. Occupational Safety and Health Act
c. Resource and Conservation and Recovery Act
d. Food and Drug Act - ✔✔Resource and Conservation and Recovery Act
