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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

51 cm
50 cm
52 cm
52.2 cm

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of rectangular section will be maximum, if

Its breadth is twice the depth
Its depth is thrice the breadth
Its depth is twice the breadth
Its breadth is thrice the depth

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Hydraulics and Fluid Mechanics in ME
The flow ratio in case of Francis turbine varies from

0.15 to 0.3
0.6 to 0.9
0.4 to 0.5
1 to 1.5

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Hydraulics and Fluid Mechanics in ME
The magnitude of water hammer depends upon the

Elastic properties of the pipe material
Speed at which the valve is closed
Elastic properties of the liquid flowing through the pipe
All of these

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Hydraulics and Fluid Mechanics in ME
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately

30 mm
10 mm
5 mm
20 mm

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Unsteady
Laminar
Uniform
Steady

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