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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2gH)
Cd × a × √(2g) × H5/2
Cd × a × √(2g) × H2
Cd × a × √(2g) × H3/2

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the

Axial
Radial
Vortex
Centrifugal

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity with increase in pressure

decreases
increases
increases first upto certain limit and then decreases
remains constant

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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
One-third
One-half
Two-third

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Hydraulics and Fluid Mechanics in ME
When the Mach number is between ___ the flow is called super-sonic flow.

1 and 2.5
4 and 6
1 and 6
2.5 and 4

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Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

High density
Low surface tension
Low density
High surface tension

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