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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth for a circular pipe of diameter (d) is

d/2
d/6
d
d/4

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
viscous force and buoyancy force
pressure force and inertial force
inertial force and gravity

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Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Real fluid
Newtonian fluid
Non-Newtonian fluid
Ideal fluid

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Hydraulics and Fluid Mechanics in ME
If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water , the horse power required will be

H.P./0.75
Same
0.75 B.H.P
1.5 B.H.P

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

Decreases
Increases
First increases and then decreases
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
The angle of taper on draft tube is

Greater than 8°
Greater than 15°
Less than 8°
Greater than 5°

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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