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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the outlet
At any point between inlet and outlet
At the summit
At the inlet

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Hydraulics and Fluid Mechanics in ME
The top of the weir over which the water flows is known as

Nappe or vein
None of these
Orifice
Sill or crest

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Hydraulics and Fluid Mechanics in ME
Centre of buoyancy always

remains above the centre of gravity
coincides with the centre of gravity
coincides with the centroid of the volume of fluid displaced
remains below the centre of gravity

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

80 r.p.m.
20 r.p.m.
40 r.p.m.
10 r.p.m.

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Mach number
Weber's number
Froude's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
One horsepower is equal to

550 watts
735 watts
75 watts
102 watts

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