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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the Venturimeter is inclined, then for a given flow it will show __________ reading.

None of these
Less
Same
More

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Double
Equal to
Three to four times
Five to six times

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Hydraulics and Fluid Mechanics in ME
Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)

Q = π.D.Vf
Q = π.D.bf.V
Q = π.b.Vf
Q = D.b.Vf

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Hydraulics and Fluid Mechanics in ME
Dynamic similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
None of these

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

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

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Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

pressure
surface tension
dynamic viscosity
kinematic viscosity

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