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Question
The specific speed of a centrifugal pump, delivering 750 litres of water per second against a head of 15 metres at 725 r.p.m., is
Options:
A .  24.8 r.p.m.
B .  48.2 r.p.m
C .  82.4 r.p.m.
D .  248 r.p.m
Answer: Option C
Answer: (c).82.4 r.p.m.

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