When faced with a licensing exam, don't struggle with test anxiety! Use the question below and others from our Exam Study Guide series to study and prepare for exam questions. Take a look at this sample water treatment licensing question along with an explanation of the correct answer.

Sample question:

Which of the following is a disease you can get from drinking water?

A) Malaria
B) Meningitis
C) West Nile virus
D) Giardiasis

Answer: Giardiasis is caused by the protozoan Giardia lamblia. Most infections in the United States occur in the warmer months during late spring, summer and early fall. This is believed to be due to people swimming in untreated waters and accidently swallowing the contaminated water.

So, the correct answer is D.

Reference: Water Treatment Plant Operation. 6th Edition, Volume l, California State University, Sacramento. Page 272

About the author
Drew Hoelscher is the program director of drinking water operations at the Environmental Resources Training Center (ERTC) in Edwardsville, Illinois.