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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H
P/ H²
P/ √H
P/ H3/2

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Hydraulics and Fluid Mechanics in ME
The units of dynamic or absolute viscosity are

newton-sec² per meter
metres² per sec
newton-sec per meter
kg sec/meter

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Hydraulics and Fluid Mechanics in ME
Dynamic similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are equal in size and shape
None of these
Are identical in shape, but differ only in size

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Hydraulics and Fluid Mechanics in ME
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

None of these
3.53 kN
35.3 kN
33.3 kN

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Hydraulics and Fluid Mechanics in ME
The property of a fluid which enables it to resist tensile stress is known as

compressibility
adhesion
surface tension
cohesion

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

√2gH
0.5 a. √2gH
0.855 a. √2gH
0.707 a. √2gH

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