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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

1/√2
1
43832
√2

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Hydraulics and Fluid Mechanics in ME
Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is

slightly more
nearly half
equal
slightly less

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Hydraulics and Fluid Mechanics in ME
The depth of the centre of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

2.4 m
4.0 m
5.0 m
3.0 m

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

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

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

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

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Hydraulics and Fluid Mechanics in ME
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H3/2 where m is equal to

0.405 + (H/0.003)
0.003 + (H/0.405)
0.003 + (0.405/H)
0.405 + (0.003/H)

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