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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 × hf
w × Q (H + hf)
w × Q (H - hf)

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Hydraulics and Fluid Mechanics in ME
The property of fluid by virtue of which it offers resistance to shear is called

adhesion
cohesion
surface tension
viscosity

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.

None of these
Two-third
One-half
One-third

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Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

2
1
43924

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Hydraulics and Fluid Mechanics in ME
Working principle of dead weight pressure gauge tester is based on

Newton’s law of viscosity
Pascal’s law
Dalton’s law of partial pressure
Avogadro’s hypothesis

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Hydraulics and Fluid Mechanics in ME
The velocity distribution for laminar flow through a circular tube

varies parabolically with maximum at the centre
None of these
is constant over the cross-section
varies linearly from zero at walls to maximum at centre

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