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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 5
(D/2d) + 20
(D/2d) + 10
(D/2d) + 15

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Hydraulics and Fluid Mechanics in ME
The unit of kinematic viscosity in S. I. units is

m2/s
N-m
N-m/s
N-s/m2

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

Centrifugal pump
Axial flow pump
None of these
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

4μvl/wd²
16μvl/wd²
8μvl/wd²
32μvl/wd²

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Hydraulics and Fluid Mechanics in ME
A thick liquid like syrup has a ___ viscosity than a light liquid like water.

Greater
Lesser
None of the listed here
Same

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Hydraulics and Fluid Mechanics in ME
The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be

1500 kg
500 kg
2000 kg
1000 kg

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