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Water Distribution Exam 1 Questions Graded A+
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Water Distribution Exam 1
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Water Distribution Exam 1A noisy or vibrating valve may be an indication of what? - answer Cavitation
The selective destruction or inactivation of pathogenic organisms is - answer
Disinfection
Pathogenic organisms can be removed from water, killed, or inactivated by - answer
Filtration
The most commonly used distribution system disinfection is - answerFree chlorine
A greenish- yellow gas with a penetrating and distinctive odor, two and a half times
heavier than air is - answer Chlorine
A brief session to discuss aspects of a job and safety - answerTailgate safety meeting
The most common means of disinfecting drinking water used today to protect the
public's health? - answerChlorination
What is the responsibility of water distribution system operators? - answerEnsure safe
and pleasant drinking water is delivered to everyone's tap
A valve that automatically shuts off the flow into an elevated tank when the water level
in the tank reaches a predetermined level. - answerAltitude valve
A pump consisting of an impeller fixed on a rotating shaft, that is enclosed in a casing,
and having an inlet and a discharge connection would be called - answerCentrifugal
pump
What is the MAIN purpose of a water storage facility? - answerTo provide sufficient
supply of water to average daily demands on the water supply system
When is the best time to take a storage tank out of service? - answerWhen consumption
is lowest
Gauges are commonly used on which side of a pump? - answerDischarge side
A condition which atmospheric or dissolved molecular oxygen is present in the aquatic
environment is called - answerAerobic
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