REHS EXAM QUESTIONS AND CORRECT DETAILED ANSWERS

REHS EXAM QUESTIONS AND CORRECT DETAILED ANSWERS ( ANSWERS)

Which of the following organisms are most resistant to
unfavorable environmental conditions and indicate past of
possibly intermittent pollution?
a. fecal streptococci
b. eschericha coli
c. aerobacter aerogenes
d. clostridium sporulates
Correct answer: clostridium sporulates
The presence of which of the following is most easily identified
by laboratory analysis in water contaminated by feces?
a. shigella dysenteriae
b. coliform
c. entamoeba histolytica
d. salmonella typhosa
Correct answer: coliform
Which of the following disinfecting compounds can be used in
full strength for disinfecting?
a. perchloron 

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