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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Four times
Double
Sixteen times
Eight times

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

work
energy
mass
momentum

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

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Steady uniform flow
Steady non-uniform flow
Unsteady non-uniform flow
Unsteady uniform flow

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Hydraulics and Fluid Mechanics in ME
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

None of these
Does not effect
Effects
Both A and B

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Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which

Develops unit power under unit speed
Delivers unit discharge under unit speed
Develops unit power under unit head
Delivers unit discharge under unit head

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