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Which among the following happens in the second half of NPSH?

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+1 vote
in Fluid Mechanics by (118k points)
Which among the following happens in the second half of NPSH?

(a) Vapour pressure

(b) Atmospheric pressure

(c) Suction pressure

(d) Discharge pressure

The question was asked in homework.

My doubt is from Effect of Acceleration in  Suction and Delivery Pipes on Indicator Diagrams topic in section Indicator Diagrams of Fluid Mechanics

1 Answer

+2 votes
by (362k points)
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Best answer
The correct choice is (a) Vapour pressure

Best explanation: During the second half of the NPSH, vapour pressure is more difficult to determine. It is a measure of the desire of liquids. Cool water has a low vapour pressure. Thus, the option is Vapour pressure.

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