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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

surface tension
adhesion
cohesion
viscosity

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Hydraulics and Fluid Mechanics in ME
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

Does not change
Expands
Contracts
None of these

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Ratio
Different
Sum
Product

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

Pelton wheel
None of these
Francis turbine
Kaplan turbine

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Hydraulics and Fluid Mechanics in ME
A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ?

4 (225)1/3 minutes
4 minutes
4 x V225 minutes
4 x (225)3/2 minutes

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

10 to 100
80 to 200
0 to 4.5
250 to 300

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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