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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
One cubic metre of water weighs

1000 liters
100 liters
250 liters
500 liters

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will

decrease
increase
may increase or decrease depending on the characteristics of liquid
remain unaffected

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Hydraulics and Fluid Mechanics in ME
The specific speed (Ns) of a centrifugal pump is given by

(N√Q)/H3/4
(N√Q)/H2/3
(N√Q)/H5/4
(N√Q)/H

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

maximum
zero
minimum
non-zero finite

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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
3.0 m
2.4 m
2.5 m

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic coupling
Hydraulic press
Air lift pump
Jet pump

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