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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following is used to measure the discharge ?

pitot tube
venturimeter
hotwire anemometer
current meter

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

Rectangular
Trapezoidal
Triangular
Square

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Hydraulics and Fluid Mechanics in ME
The point at which the resultant pressure on an immersed surface acts, is known as

Centre of immersed surface
Centre of depth
Centre of gravity
Centre of pressure

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Hydraulics and Fluid Mechanics in ME
Hydraulic accumulator is used for

Generally high pressures to operate hydraulic machines
Accumulating oil
Supplying large quantities of oil for very short duration
Supplying energy when main supply fails

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of temperature
increases with increase in temperature
is independent of pressure for very high pressure intensities
decreases with increase in temperature

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Hydraulics and Fluid Mechanics in ME
A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

Manometric head
Kinetic head
Velocity head
Static head

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