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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.

Three times
Double
Five times
Four times

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Hydraulics and Fluid Mechanics in ME
The most efficient section of a channel is

Triangular
Trapezoidal
Rectangular
Square

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.707
0.5
0.855
0.375

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Hydraulics and Fluid Mechanics in ME
In a static fluid

Resistance to shear stress is small
Only normal stresses can exist
Fluid pressure is zero
Linear deformation is small

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Weight of the liquid displaced
Viscosity of the liquid
Compressibility of the liquid
Pressure with which the liquid is displaced

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Hydraulics and Fluid Mechanics in ME
The mercury does not wet the glass. This is due to the property of the liquid known as

Viscosity
Cohesion
Surface tension
Adhesion

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