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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Half the breadth
Half the depth
Twice the breadth
Twice the depth

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Hydraulics and Fluid Mechanics in ME
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is

7
1
6
5

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

Reciprocating pump
Air lift pump
Centrifugal pump
Jet pump

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Pascal's law
Newton's formula
Boyle's law
Archimedes principle

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is turbulent when Reynold number is

Less than 2000
More than 2800
None of these
Between 2000 and 2800

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

Newton-sec per meter²
kg-sec/meter
Newton-sec per meter
Meters² per sec

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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