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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

2100
10000
2700
21000

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

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

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

steady flow
turbulent flow
laminar flow
uniform flow

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Hydraulics and Fluid Mechanics in ME
The optimum value of vane exit angle for a centrifugal pump impeller is

20-25°
10-15°
50-60°
30-40°

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Kaplan turbine
None of these
Pelton wheel
Francis turbine

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

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

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