WATER TREATMENT ACTUAL EXAM
PREP QUESTIONS ANSWERS EXPERT
VERIFIED
◉ COAGULATION. Answer: When a chemical is added to the water to
cause small solids to group together
◉ FLOCCULATION. Answer: When a chemical added to the water
causes small solids to group together
◉ SEDIMENTATION. Answer: When solids sink to the bottom of the
water
◉ DECANTING. Answer: After solids sink to the bottom of the water
(sedimentation), the cleaner water at the top is taken off
◉ DISINFECTION. Answer: Chlorine, ozone, or ultraviolet radiation is
added to kill any harmful living organism in the water
◉ PATHOGEN. Answer: A microorganism that can cause harm
PREP QUESTIONS ANSWERS EXPERT
VERIFIED
◉ COAGULATION. Answer: When a chemical is added to the water to
cause small solids to group together
◉ FLOCCULATION. Answer: When a chemical added to the water
causes small solids to group together
◉ SEDIMENTATION. Answer: When solids sink to the bottom of the
water
◉ DECANTING. Answer: After solids sink to the bottom of the water
(sedimentation), the cleaner water at the top is taken off
◉ DISINFECTION. Answer: Chlorine, ozone, or ultraviolet radiation is
added to kill any harmful living organism in the water
◉ PATHOGEN. Answer: A microorganism that can cause harm