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civil engineering water supply engineering
1. In centrifugal pump installation,
(A): all the above.
(B): pump is properly primed before starting
(C): the diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe
(D): the foot valve fitted at the bottom end of the suction pipe, prevents the movement of water from the pump when it is stopped
(E): the motor may burn out if it is started with empty delivery pipe and with open gate valve
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