WITH CORRECT SOLUTIONS.

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REHS EXAM

WITH CORRECT SOLUTIONS.

• A factor or agent which increases the risk of cancer is known

as a

• teratogen
• mutagen
• carcinogen
• fomite - correct answer- carcinogen

• The four major causes of death among all age groups of

Americans include all of the following except.

• homicide
• accidents
• malignant neoplasms
• heart disease - correct answer- homicide

• In recent years, the largest number of rabies cases were

associated with

• skunks
• bats
• dogs
• raccons. - correct answer- skunks 1 / 4

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• Asbestosis is caused by fine silicate fibers retained in the
• kidneys
• lungs
• colon
• abdomen - correct answer- lungs

• An illness due to a specific infectious agent or its toxic

product which is transmitted from a reservoir to a susceptible host either directly or indirectly is called

• an infectious disease
• a communicable disease
• a genetic disease
• a noncommunicable disease - correct answer- a

communicable disease

• Rocky mountain spotted fever is spread by
• flies
• spiders
• cockroaches
• ticks - correct answer- ticks
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• Mycotoxins are poisonous chemicals produced by
• bacteria
• vertebrates
• viruses
• fungi - correct answer- fungi

• The study of the occurrence, frequency, and distribution of

disease is

• entomology
• biology
• endocrinology
• epidemiology - correct answer- epidemiology

• Which of the following organisms are most resistant to

unfavorable environmental conditions and indicate past or possibly intermittent pollution?

• fecal streptococci
• escherichia coli
• aerobacter aerogenes
• clostridium sporulates - correct answer- clostridium

sporulates

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• Engineering controls are
• controls that isolate or remove hazards from the work place
• less effective than good training
• the last option that should be considered
• less effective than personal protection processes - correct

answer- controls that isolate or remove hazards from the workplace

• Which of the following is not considered a satisfactory

solution to the problem of chemical contamination in Well systems?

• abandoning the well
• boiling the water
• building a new, properly constructed, drilled well - correct

answer- boiling the water

• Which of the following chemicals is most widely used to

destroy microorganisms?

• chlorine
• copper sulfate
• chloramine
• hydrogen sulfate - correct answer- chlorine

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