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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

52 cm
52.2 cm
51 cm
50 cm

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

friction loss and flow
flow and length
length and diameter
friction factor and diameter

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Hydraulics and Fluid Mechanics in ME
The most efficient section of a channel is

Square
Rectangular
Trapezoidal
Triangular

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.688
0.848
0.492
0.392

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

all the above are correct
upthrust
buoyancy
center of pressure

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

flow
velocity of fluid
absolute pressure
rotation

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