MCQs
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Answer: Option D. -> Compressors
Question 52. A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.
Answer: Option B. -> 11 m
Answer: Option A. -> I.D.
Answer: Option C. -> Both A & B
Answer: Option D. -> Having no motion of one fluid layer relative to the other
Answer: Option A. -> Save power in compressing a given volume to a given pressure
Answer: Option A. -> Protect the pump against developing excessive pressure
Answer: Option A. -> Reduce discharge fluctuation
Answer: Option A. -> Temperature
Answer: Option C. -> Sudden expansion of flow in the downstream occurs