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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

None of these
33.3 kN
35.3 kN
3.53 kN

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

As square of density
Inversely as density
Inversely as square root of density
Directly as the air or gas density

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

pressure in pipes, channels etc
atmospheric pressure
difference of pressure between two points
very low pressure

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Hydraulics and Fluid Mechanics in ME
Francis turbine is best suited for

Medium head application from 24 to 180 m
High head installation above 180 m
Low head installation up to 30 m
All types of heads

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Hydraulics and Fluid Mechanics in ME
Gauge pressure at a point is equal to the absolute pressure ___ the atmospheric pressure.

Plus
Multiply
Minus
Divide

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

1.71 Cd × L × H1/2
0.384 Cd × L × H3/2
1.71 Cd × L × H3/2
0.384 Cd × L × H1/2

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