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

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Hydraulics and Fluid Mechanics in ME
The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by

[2(Vr - v) v]/ Vr²
[2(Vr + v) v]/ Vr²
[(Vr - v) v]/ Vr
[(Vr + v) v]/ Vr

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Weight of the liquid displaced
Compressibility of the liquid
Viscosity of the liquid
Pressure with which the liquid is displaced

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Hydraulics and Fluid Mechanics in ME
Alcohol is used in manometers because

It can provide longer column due to low density
It is clearly visible
It has low surface tension
It has low vapour pressure

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Hydraulics and Fluid Mechanics in ME
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

IG / Ax̅ above
IG / Ax̅ below
Ax̅ / IG below
Ax̅ / IG above

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.97
0.84
0.62
0.76

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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