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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

27,000 kg
9,000 kg
18,000 kg
13,500 kg

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Hydraulics and Fluid Mechanics in ME
An object having 10 kg mass weighs 9.81 kg on a spring balance. The value of 'g' at this place is

10 m/sec²
9.75 m/sec²
9 m/sec
9.81 m/sec²

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Hydraulics and Fluid Mechanics in ME
The losses are more in

turbulent flow
critical flow
laminar flow
transition flow

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Hydraulics and Fluid Mechanics in ME
The loss of pressure head in case of laminar flow is proportional to

(Velocity)4
(Velocity)2
(Velocity)3
Velocity

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Hydraulics and Fluid Mechanics in ME
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity

One-third
Three-fourth
Two-third
One-half

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

depth of immersion
pressure of the liquid displaced
viscosity of the liquid
mass of liquid displaced

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