RS/ REHS Exam 2026/2027 |
Comprehensive Study Notes & Practice
Test
What is the most common cause of bacterial meningitis in children under five
years of age?
a) Neisseria meningitides
b) Group B Streptococci
c) Streptococcus pneumoniae
d) Haemophilus influenzae type B - correct answer-d) Haemophilus influenzae
type B
How is "giardiasis" usually transmitted to others?
a) Person-to-person transfer of cysts from the feces of the infected individual
b) Drinking unfiltered water from streams and lakes
c) Drinking unboiled water from streams and lakes
d) Drinking inadequately chlorinated water from a municipal water distribution
system - correct answer-a) Person-to-person transfer of cysts from the feces of
the infected individual
,Which of the following duties of state and local health agencies is focused to
protect the public's health and welfare?
a) Community-intensive planning
b) Statutory administrative action
c) Regulatory responsibilities
d) Plan implementation - correct answer-c) Regulatory responsibilities
Which of the following is a measure of the amount of light scattered by particles
suspended in a water test sample?
a) Formazin Turbidity Units (FTU)
b) Nephelometric Turbidity Units (NTU)
c) Hydrosyntalic Turbidity Units (HTU)
d) Lorcetic Turbidity Units (LTU) - correct answer-b) Nephelometric Turbidity
Units (NTU)
What is an epidemic?
a) The constant presence of a disease within a community or region
b) The presence of an infectious agent on a body surface
c) The presence of infection in a host without clear, recognizable clinical
symptoms
d) The occurrence in a community or region of cases of an illness clearly in excess
of expectancy - correct answer-d) The occurrence in a community or region of
cases of an illness clearly in excess of expectancy
What portal of entry should a field sanitarian protect to avoid contracting Lyme
disease?
,a) Skin
b) Respiratory tract
c) Reproductive organs
d) Digestive tract - correct answer-a) Skin
Swimmer's itch is a common name for which of the following diseases?
a) Leptospirosis
b) Subdural dermatitis
c) Schistosomiasis
d) Trichiniasis - correct answer-c) Schistosomiasis
Which of the following factors would least contribute to the emergence of a new
infectious disease?
a) Human behavior
b) Heat disinfection
c) Antibiotic use
d) Disinfectant use - correct answer-b) Heat disinfection
Listeriosis is commonly associated with
a) contaminated water
b) contaminated food
c) infected mice
d) infected birds - correct answer-b) contaminated food
Hemolytic Uremic Syndrome is caused by an infection with
, a) dracunculus medinensis
b) staphylococcus aureus
c) escherichia coli O157:H7
d) salmonella typhimurium - correct answer-c) escherichia coli O157:H7
The basic principles of disease control include all of the following except
a) lag phase
b) control of disease source
c) mode of transmission
d) understanding susceptibility - correct answer-a) lag phase
Which one of the following phrases most accurately describes the term endemic?
a) sporadic occurrence of an illness
b) illnesses that exceed expected levels
c) all illnesses present at any one time
d) constant presence of an illness - correct answer-d) constant presence of an
illness
The interval between exposure to an infectious agent and the appearance of the
first symptom is called the
a) transmission period
b) susceptible period
c) reactive period
d) incubation period - correct answer-d) incubation period
Comprehensive Study Notes & Practice
Test
What is the most common cause of bacterial meningitis in children under five
years of age?
a) Neisseria meningitides
b) Group B Streptococci
c) Streptococcus pneumoniae
d) Haemophilus influenzae type B - correct answer-d) Haemophilus influenzae
type B
How is "giardiasis" usually transmitted to others?
a) Person-to-person transfer of cysts from the feces of the infected individual
b) Drinking unfiltered water from streams and lakes
c) Drinking unboiled water from streams and lakes
d) Drinking inadequately chlorinated water from a municipal water distribution
system - correct answer-a) Person-to-person transfer of cysts from the feces of
the infected individual
,Which of the following duties of state and local health agencies is focused to
protect the public's health and welfare?
a) Community-intensive planning
b) Statutory administrative action
c) Regulatory responsibilities
d) Plan implementation - correct answer-c) Regulatory responsibilities
Which of the following is a measure of the amount of light scattered by particles
suspended in a water test sample?
a) Formazin Turbidity Units (FTU)
b) Nephelometric Turbidity Units (NTU)
c) Hydrosyntalic Turbidity Units (HTU)
d) Lorcetic Turbidity Units (LTU) - correct answer-b) Nephelometric Turbidity
Units (NTU)
What is an epidemic?
a) The constant presence of a disease within a community or region
b) The presence of an infectious agent on a body surface
c) The presence of infection in a host without clear, recognizable clinical
symptoms
d) The occurrence in a community or region of cases of an illness clearly in excess
of expectancy - correct answer-d) The occurrence in a community or region of
cases of an illness clearly in excess of expectancy
What portal of entry should a field sanitarian protect to avoid contracting Lyme
disease?
,a) Skin
b) Respiratory tract
c) Reproductive organs
d) Digestive tract - correct answer-a) Skin
Swimmer's itch is a common name for which of the following diseases?
a) Leptospirosis
b) Subdural dermatitis
c) Schistosomiasis
d) Trichiniasis - correct answer-c) Schistosomiasis
Which of the following factors would least contribute to the emergence of a new
infectious disease?
a) Human behavior
b) Heat disinfection
c) Antibiotic use
d) Disinfectant use - correct answer-b) Heat disinfection
Listeriosis is commonly associated with
a) contaminated water
b) contaminated food
c) infected mice
d) infected birds - correct answer-b) contaminated food
Hemolytic Uremic Syndrome is caused by an infection with
, a) dracunculus medinensis
b) staphylococcus aureus
c) escherichia coli O157:H7
d) salmonella typhimurium - correct answer-c) escherichia coli O157:H7
The basic principles of disease control include all of the following except
a) lag phase
b) control of disease source
c) mode of transmission
d) understanding susceptibility - correct answer-a) lag phase
Which one of the following phrases most accurately describes the term endemic?
a) sporadic occurrence of an illness
b) illnesses that exceed expected levels
c) all illnesses present at any one time
d) constant presence of an illness - correct answer-d) constant presence of an
illness
The interval between exposure to an infectious agent and the appearance of the
first symptom is called the
a) transmission period
b) susceptible period
c) reactive period
d) incubation period - correct answer-d) incubation period
