1
SANITARIAN WRITTEN EXAM STUDY
GUIDE PART 1 ACTUAL 2025/2026
QUESTIONS AND 100% CORRECT
ANSWERS
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
, 2
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
SANITARIAN WRITTEN EXAM STUDY
GUIDE PART 1 ACTUAL 2025/2026
QUESTIONS AND 100% CORRECT
ANSWERS
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
, 2
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
