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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

43924
1
2

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Hydraulics and Fluid Mechanics in ME
The speed of a turbine runner is

Inversely proportional to H1/2
Directly proportional to H1/2
Directly proportional to H3/2
Inversely proportional to H3/2

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Hydraulics and Fluid Mechanics in ME
The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar)

0.10 cm
0.20 cm
0.40 cm
0.05 cm

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator normally consists of

A cylinder, a piston, storage tank and control valve
Two cylinders, two rams and a storage device
Two coaxial rams and two cylinders
A cylinder and a ram

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Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

quasi static
laminar
steady state
uniform

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Hydraulics and Fluid Mechanics in ME
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

All of these
The area is horizontal
The area is inclined
The area is vertical

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