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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q × H
w × Q (H + hf)
w × Q × hf
w × Q (H - hf)

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic coupling
Hydraulic press
Air lift pump
Jet pump

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Hydraulics and Fluid Mechanics in ME
Maximum impulse will be developed in hydraulic ram when

Waste valve closes suddenly
Supply pipe is short
Supply pipe is long
Ram chamber is large

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Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

241.5 r.p.m.
175.4 r.p.m.
275.4 r.p.m
215.5 r.p.m.

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Hydraulics and Fluid Mechanics in ME
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

Coincides with its centre of gravity
Lies between the centre of buoyancy and centre of gravity
Lies above its centre of gravity
Lies below its centre of gravity

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Hydraulics and Fluid Mechanics in ME
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

(8/15) Cd. 2g. H
(8/15) Cd. 2g. H²
(8/15) Cd. 2g. H3/2
(8/15) Cd. 2g. H5/2

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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