DISTRIBUTION
LEVEL 1 EXAM
What type of pump consist of an impeller fixed on a rotating shaft
enclosed in a casing ? - ANSWERS-A centrifugal pump
The purpose of a check valve is to ? - ANSWERS-To prevent flow in a
reverse direction
A complete framework of wood and or a metal that is designated to
support the walls of a trench is referred to as Wich or the following ? -
ANSWERS-Shoring
A weighted check valve if improperly adjusted can result in ? -
ANSWERS-Water hammer
Protected classes of employees includes? - ANSWERS-Over 40 years of
age gender and political affiliation
Gate valves are used in water distribution systems because ? -
ANSWERS-They exhibit less friction than other valves
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, WATER LATEST
DISTRIBUTION
LEVEL 1 EXAM
Wich of the following best describes the definition of controlling ? -
ANSWERS-Ensuring that progress is being made toward objectives and
taking corrective actions as Necessary
What are 4 types of maintenance in preventative maintenance program ?
- ANSWERS-Predictive maintenance,predictive maintenance,planned
maintenance, corrective maintenance
About how many gallons would a 6'' pipeline ,1000 feet long hold -
ANSWERS-1500
Why is the objective of any safety program? - ANSWERS-To prevent
accidents
What is the chlorine residual in a treated water if the dose was 2.1 mg/L
and the demand was. 0.8 mg/L ? - ANSWERS-1.3 mg/L
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