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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total energy line lies over the centre line of the pipe by an amount equal to

Pressure head - velocity head
Pressure head + velocity head
Velocity head
Pressure head

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Hydraulics and Fluid Mechanics in ME
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is

400 kg/cm²
40 × 10⁵ kg/cm²
40 × 10⁶ kg/cm²
4000 kg/cm²

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a syphon, an air vessel is provided

at the outlet
ay nay point between inlet and outlet
at the inlet
at the summit

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

Venturimeter
pitot tube
hot wire anemometer
rotameter

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Diameter of Pelton wheel to the diameter of jet
Velocity of jet to the velocity of Pelton wheel
Diameter of jet to the diameter of Pelton wheel
Velocity of Pelton wheel to the velocity of jet

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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 per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

wH2/3
wH
wH2/2
wH/2

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