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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

0.5v²/2g
0.375v²/2g
v²/2g
0.75v²/2g

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
inertial force and gravity
viscous force and buoyancy force
pressure force and inertial force

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Hydraulics and Fluid Mechanics in ME
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

800 kg/m3
600 kg/m3
400 kg/m3
200 kg/m3

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of gravity
center of buoyancy
water surface
center of pressure

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of rectangular section will be maximum, if

Its breadth is twice the depth
Its breadth is thrice the depth
Its depth is thrice the breadth
Its depth is twice the breadth

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

More than three times
More than twice
Less than three times
Less than twice

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