Nominal size of the discharge pipe of a pump is usually _____________ the nominal size of the inlet pipe?
Correct answer: A. Smaller than
- A. Smaller than
- B. Larger than
- C. Same as
- D. Twice
Explanation
The suction pipe is usually made larger than the discharge pipe to keep suction velocity and entrance losses low, thereby helping satisfy the pump's NPSH requirement. Consequently, the discharge pipe is usually smaller.
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