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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the center 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

4.0 m
2.4 m
2.5 m
3.0 m

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Hydraulics and Fluid Mechanics in ME
A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Newtonian fluid
Real fluid
Non-Newtonian fluid
Ideal fluid

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Hydraulics and Fluid Mechanics in ME
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by

0.1
0.2
0.05
0.15

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Hydraulics and Fluid Mechanics in ME
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

Effects
Both A and B
None of these
Does not effect

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Hydraulics and Fluid Mechanics in ME
In a static fluid

Resistance to shear stress is small
Only normal stresses can exist
Linear deformation is small
Fluid pressure is zero

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Hydraulics and Fluid Mechanics in ME
Alcohol is used in manometers because

It can provide longer column due to low density
It has low surface tension
It is clearly visible
It has low vapour pressure

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