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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 5
(D/2d) + 15
(D/2d) + 10
(D/2d) + 20

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Hydraulics and Fluid Mechanics in ME
The wake

is a region of high pressure intensity
always occurs before a separation point
always occurs after a separation point
None of these

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Hydraulics and Fluid Mechanics in ME
A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Ideal fluid
Newtonian fluid
Non-Newtonian fluid
Real fluid

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Hydraulics and Fluid Mechanics in ME
A streamline is defined as the line

of equal yelocity in a flow
parallel to central axis flow
along which the pressure drop is uniform
parallel to outer surface of pipe

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Hydraulics and Fluid Mechanics in ME
A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

Viscous
None of these
Compressible
Incompressible

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Hydraulics and Fluid Mechanics in ME
The surface tension of mercury at normal temperature is __________ that of water.

Lower than
Same as
Higher than
None of these

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