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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of mass density in kgsecVm4 for water at 0°C is

1
100
101.9
1000

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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 discharge of wheel is

0.5 m3/s
0.25 m3/s
1.5 m3/s
2.5 m3/s

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

viscosity of the liquid
pressure of the liquid displaced
mass of liquid displaced
depth of immersion

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Hydraulics and Fluid Mechanics in ME
The volumetric change of the fluid caused by a resistance is known as

Volumetric index
Volumetric strain
Adhesion
Compressibility

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Hydraulics and Fluid Mechanics in ME
The angle of taper on draft tube is

Greater than 15°
Greater than 8°
Less than 8°
Greater than 5°

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Hydraulics and Fluid Mechanics in ME
The divergent portion of a Venturimeter is made longer than convergent portion in order to

Both (A) and (B)
Avoid the tendency of breaking away the stream of liquid
None of these
To minimize frictional losses

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