WATER DISTRIBUTION LEVEL 3 EXAM QUESTIONS COMPLETE WITH
100% CORRECT ANSWERS
\.A factor or value used to indicate the smoothness of the interior of a
pipe - ANSWERS-Cfactor
\.Major parts of water distribution - ANSWERS-Pipes, storage facilities,
pumping stations, valves ,fire hydrants, meters, and other
appurtenances
\.Main purpose of water storage facilities - ANSWERS-To provide
sufficient amount of water to average or equalize the daily demands on
the water supply system
\.Types of storage facilities - ANSWERS-Clear wells, elevated
tanks,standpipes,ground level storage tanks , hydro pneumatic or
pressure tanks, and surge tanks
\.20 psi - ANSWERS-Absolute minimum pressure
\.35 psi - ANSWERS-Minimum working pressure
, \.Basic requirements of pipes - ANSWERS-Adequate strength,
durability,maximum corrosion, resistance and no adverse effect on
water quality
\.Four classes of working pressure are commonly encountered -
ANSWERS-100,150,200,250 psi
\.Push on and mechanical joints are most often used for - ANSWERS-
Ductile iron pipe. Flanges, restrained, flexible, and sleeve joints are also
used
\.Flange joints - ANSWERS-Not flexible
\.Restrained joints - ANSWERS-Prevent movement
\.Flexible joints - ANSWERS-Permits one joint to move
\.PE pipe - ANSWERS-Has the highest cfactors 150
\.Pipe protection - ANSWERS-Paint
\.Rock must be excavated - ANSWERS-6inches
100% CORRECT ANSWERS
\.A factor or value used to indicate the smoothness of the interior of a
pipe - ANSWERS-Cfactor
\.Major parts of water distribution - ANSWERS-Pipes, storage facilities,
pumping stations, valves ,fire hydrants, meters, and other
appurtenances
\.Main purpose of water storage facilities - ANSWERS-To provide
sufficient amount of water to average or equalize the daily demands on
the water supply system
\.Types of storage facilities - ANSWERS-Clear wells, elevated
tanks,standpipes,ground level storage tanks , hydro pneumatic or
pressure tanks, and surge tanks
\.20 psi - ANSWERS-Absolute minimum pressure
\.35 psi - ANSWERS-Minimum working pressure
, \.Basic requirements of pipes - ANSWERS-Adequate strength,
durability,maximum corrosion, resistance and no adverse effect on
water quality
\.Four classes of working pressure are commonly encountered -
ANSWERS-100,150,200,250 psi
\.Push on and mechanical joints are most often used for - ANSWERS-
Ductile iron pipe. Flanges, restrained, flexible, and sleeve joints are also
used
\.Flange joints - ANSWERS-Not flexible
\.Restrained joints - ANSWERS-Prevent movement
\.Flexible joints - ANSWERS-Permits one joint to move
\.PE pipe - ANSWERS-Has the highest cfactors 150
\.Pipe protection - ANSWERS-Paint
\.Rock must be excavated - ANSWERS-6inches
