Sanitarian Written Exam Study Guide
Part 1 Questions With Verified
Answers 2023-2024
Infectious hepatitis is an important, but poorly understood disease according to present
day knowledge. Which of the following statements is TRUE regarding this disease? -
Answer The agent occurs in both the blood & feces of patients
Outbreaks of many diseases have been traced to un-pasteurized milk as the source of
transmission. Which of the following diseases would NOT be transmitted this way? -
Answer Dengue
An outbreak of trachoma (pink eye) was traced to a public swimming pool. Which of the
following is the MOST likely cause? - Answer The use of community towels.
Which of the following areas would be LEAST closely associated with infant mortality
rate in a community? - Answer Auto Accidents
Office of Health Service regulations require bacteriological drinking water samples to be
analyzed by the laboratory within ______ hours after collection - Answer 30
The GREATEST advantage offered by the membrane filter technique over the multiple
tube test is - Answer Results are obtained in a shorter time
The primary purpose of rapid & filtration & coagulation in the water treatment process is
to remove - Answer Turbidity
How many pounds of calcium hypochlorite (70% available chlorine) are necessary to
make 25 gallons of 1% chlorine solution? - Answer 3
Recommended guidelines for protecting a water well against contamination would
include all EXCEPT which one of the following? - Answer The well should be protected
by a pump house
A water supply from which one of the following sources is the MOST likely to be safe for
human consumption - Answer Drilled well
The LEAST important public health reason for treating sewage is to prevent - Answer
Unsightly conditions.
, Digestion of organic matter in a septic tank is accomplished primarily - Answer By
anaerobic bacteria.
Problems with grease traps in restaurants are MOST often caused by - Answer Lack of
maintenance
Which one of the following would be the LEAST suspected cause of a tile field system
(absorption system) failure? - Answer Deterioration of the tile
Oxidation ponds operate on the principle of: - Answer Algae furnishing oxygen for
aerobic action
Water drawn from a swimming pool for filtration should come from - Answer Both the
surface & the deepest part of the pool
The recommended free chlorine residual to be maintained thru-out a water supply
distribution system is - Answer 4 ppm
Cross-connections in plumbing should be eliminated because they - Answer Have been
responsible for numerous cases of diseases such as typhoid fever & dysentery
The terms "vectors" and "vehicles" are - Answer Different because vehicles are usually
inanimate objects
Which of the following is the MOST effective fly control procedure? - Answer
Environmental Sanitation
A restaurant operator wishes to properly sanitize, using a 3 compartment sink. If 4%
bleach is used, how much must be added to the 12 gallon sink to get 100ppm chlorine
concentration - Answer 3.84 ounces
Rodents may be economic factors of considerable magnitude. Which of following is
MOST significant economically - Answer They spoil or damage food & property
Although pasteurization kills pathogens but not all bacteria, (vegetative and spores) this
process can be considered as - Answer Disinfection
Which of the following is NOT a disinfectant? - Answer Cold
Which of the following would offer the SUREST method of trichinosis control? - Answer
Thorough cooking of all pork products
The temperature range considered safe for holding potentially hazardous foods as
stated in Chapter 23: - Answer 40 F or below or 140 F or above
Part 1 Questions With Verified
Answers 2023-2024
Infectious hepatitis is an important, but poorly understood disease according to present
day knowledge. Which of the following statements is TRUE regarding this disease? -
Answer The agent occurs in both the blood & feces of patients
Outbreaks of many diseases have been traced to un-pasteurized milk as the source of
transmission. Which of the following diseases would NOT be transmitted this way? -
Answer Dengue
An outbreak of trachoma (pink eye) was traced to a public swimming pool. Which of the
following is the MOST likely cause? - Answer The use of community towels.
Which of the following areas would be LEAST closely associated with infant mortality
rate in a community? - Answer Auto Accidents
Office of Health Service regulations require bacteriological drinking water samples to be
analyzed by the laboratory within ______ hours after collection - Answer 30
The GREATEST advantage offered by the membrane filter technique over the multiple
tube test is - Answer Results are obtained in a shorter time
The primary purpose of rapid & filtration & coagulation in the water treatment process is
to remove - Answer Turbidity
How many pounds of calcium hypochlorite (70% available chlorine) are necessary to
make 25 gallons of 1% chlorine solution? - Answer 3
Recommended guidelines for protecting a water well against contamination would
include all EXCEPT which one of the following? - Answer The well should be protected
by a pump house
A water supply from which one of the following sources is the MOST likely to be safe for
human consumption - Answer Drilled well
The LEAST important public health reason for treating sewage is to prevent - Answer
Unsightly conditions.
, Digestion of organic matter in a septic tank is accomplished primarily - Answer By
anaerobic bacteria.
Problems with grease traps in restaurants are MOST often caused by - Answer Lack of
maintenance
Which one of the following would be the LEAST suspected cause of a tile field system
(absorption system) failure? - Answer Deterioration of the tile
Oxidation ponds operate on the principle of: - Answer Algae furnishing oxygen for
aerobic action
Water drawn from a swimming pool for filtration should come from - Answer Both the
surface & the deepest part of the pool
The recommended free chlorine residual to be maintained thru-out a water supply
distribution system is - Answer 4 ppm
Cross-connections in plumbing should be eliminated because they - Answer Have been
responsible for numerous cases of diseases such as typhoid fever & dysentery
The terms "vectors" and "vehicles" are - Answer Different because vehicles are usually
inanimate objects
Which of the following is the MOST effective fly control procedure? - Answer
Environmental Sanitation
A restaurant operator wishes to properly sanitize, using a 3 compartment sink. If 4%
bleach is used, how much must be added to the 12 gallon sink to get 100ppm chlorine
concentration - Answer 3.84 ounces
Rodents may be economic factors of considerable magnitude. Which of following is
MOST significant economically - Answer They spoil or damage food & property
Although pasteurization kills pathogens but not all bacteria, (vegetative and spores) this
process can be considered as - Answer Disinfection
Which of the following is NOT a disinfectant? - Answer Cold
Which of the following would offer the SUREST method of trichinosis control? - Answer
Thorough cooking of all pork products
The temperature range considered safe for holding potentially hazardous foods as
stated in Chapter 23: - Answer 40 F or below or 140 F or above
