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

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is less than the critical depth, the flow is called

Tranquil flow
Torrential flow
Turbulent flow
Critical flow

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

760 mm of mercury
All of these
10.3 m of water
103 kN/m2

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Hydraulics and Fluid Mechanics in ME
When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called

Vacuum pressure
Absolute pressure
Positive gauge pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
If the ratio's of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

Geometric similarity
None of these
Dynamic similarity
Kinematic similarity

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Hydraulics and Fluid Mechanics in ME
According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

AC × √(m × i)
A × √(m × i)
C × √(m × i)
mi × √(A × C)

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