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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

2700
21000
2100
10000

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Hydraulics and Fluid Mechanics in ME
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

Remain constant
May increase/decrease
Keeps on decreasing
Keeps on increasing

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Hydraulics and Fluid Mechanics in ME
An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be

14 kN/m2
4 kN/m2
12 kN/m2
10 kN/m2

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

2H/3
3H/4
H/2
H/3

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Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z - p/w + v²/2g = constant
Z + p/w - v²/2g = constant
Z + p/w + v²/2g = constant
Z - p/w - v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
The overall efficiency for a Pelton wheel lies between

0.75 to 0.85
0.85 to 0.90
0.50 to 0.65
0.65 to 0.75

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