Water distribution 2 Latest exam questions and answers Newest RATED A+

Water distribution 2 Latest exam
questions and answers Newest RATED
A+

Plastic - CORRECT ANSWER-Most resistant to corrosion

Chlorine gas - CORRECT ANSWER-heavier than air, extremely toxic, very corrosive to
damp atmospheres

Centrifugal pump - CORRECT ANSWER-Most common pump, used for high flow, and
low pressure applications booster pumps

Positive displacement pump - CORRECT ANSWER-For low flow, high pressure
applications. Chemical feed pumps are this type

Drawdown - CORRECT ANSWER-The difference in water levels from the point where
the pump starts and stops.

DC current - CORRECT ANSWER-Electric current used for cathodic protection.

Suction head - CORRECT ANSWER-Vertical distance from the surface of water supply
to the centerline of the pump

Pathogenic bacteria - CORRECT ANSWER-Salmonella, shigella, bacillus, typhoid
fever, cholera

Physical disinfection - CORRECT ANSWER-Ultraviolet rays, heat, and ultrasonic waves

Chemical disinfection - CORRECT ANSWER-Iodine, bromine, bases, ozone, and
chlorine

Chlorine - CORRECT ANSWER-Greenish yellow gas, that is two and a half times
heavier than air

Chloramines - CORRECT ANSWER-When chlorine reacts to ammonia it's called