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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

independent of the flow
a function of temperature only
dependent on the flow
a physical property of the fluid.

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Depth of channel
Hydraulic jump
Depth of flow in an open channel
Velocity of flow in an open channel

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Hydraulics and Fluid Mechanics in ME
When the flow in an open channel is gradually varied, the flow is said to be

Steady non-uniform flow
Steady uniform flow
Unsteady non-uniform flow
Unsteady uniform flow

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.392
0.492
0.688
0.848

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is

1.5 m3/s
0.25 m3/s
2.5 m3/s
0.5 m3/s

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

Rectangular
Trapezoidal
Triangular
Square

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