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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

Less than
More than
None of these
Same as

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Hydraulics and Fluid Mechanics in ME
Impulse turbine is generally fitted

Slightly below the tail race
About 2.5 m above the tail race to avoid cavitations
At the level of tail race
Little above the tail race

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Hydraulics and Fluid Mechanics in ME
If velocity is zero over l/3rd of a cross-section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is

43892
43924
44078
27/8

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

uniform flow
laminar flow
turbulent flow
steady flow

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

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

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Hydraulics and Fluid Mechanics in ME
Hot wire anemometer is used to measure

Pressure in gases
Liquid discharge
Pressure in liquids
Gas velocities

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