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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to

0.001
0.01
0.0001
0.1

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kgsecVm4 for water at 0°C is

101.9
1
1000
100

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the turbines?

Air lift pump
Centrifugal pump
Reciprocating pump
Jet pump

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Rectangular
Square
Trapezoidal
Circular

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Hydraulics and Fluid Mechanics in ME
The flow of water through the hole in the bottom of a wash basin is an example of

Free vortex
Uniform flow
Steady flow
Forced vortex

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Hydraulics and Fluid Mechanics in ME
For centrifugal pump impeller, the maximum value of the vane exit angle is

10° to 15°
20° to 25°
25° to 30°
15° to 20°

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