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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The width of the bucket for a Pelton wheel is generally ________ the diameter of jet.

Four times
Three times
Double
Five times

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Hydraulics and Fluid Mechanics in ME
The Reynold's number of a ship is __________ to its velocity and length.

Square root of velocity
None of these
Inversely proportional
Directly proportional

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Steady
Unsteady
Laminar
Uniform

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Hydraulics and Fluid Mechanics in ME
The units of dynamic or absolute viscosity are

kg sec/meter
newton-sec per meter
newton-sec² per meter
metres² per sec

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Hydraulics and Fluid Mechanics in ME
The undershot water wheels are those in which

None of these
The wheel runs partly by the weight of water and partly by the impulse of water
The wheel runs entirely by the impulse of water
The wheel runs entirely by the weight of water

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

1.71 Cd × L × H1/2
0.384 Cd × L × H1/2
0.384 Cd × L × H3/2
1.71 Cd × L × H3/2

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