5 Sample Questions

In what decade was the “germ theory” discovered?

  • A. 1950's
  • B. 1700's
  • C. 1910's
  • D. 1880's

In 1902, the first chlorination system was installed in what country?
 

  • A. Belgium
  • B. United States of America
  • C. China
  • D. Japan

Which of the following is considered to be the most resistant to UV radiation?
 

  • A. Helminth parasite eggs
  • B. Poliovirus
  • C. Shigella
  • D. Giardia lamblia

Which of the following is a byproduct of ozanation?

  • A. Mercury
  • B. Iron
  • C. Calcium carbonate
  • D. Bromate

Fill in the blank: Photodynamic inactivation (photochemical disinfection) is based on the transfer of sunlight energy to______________.

  • A. Heat
  • B. Chemical energy
  • C. Oxygen
  • D. Nitrogen

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