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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Less than
More than
None of these
Same as

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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

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

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Hydraulics and Fluid Mechanics in ME
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as

turbulent flow
uniform flow
one dimensional flow
steady flow

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Hydraulics and Fluid Mechanics in ME
In axial flow fans and turbines, fluid enters and leaves as follows

Radially, radially
Axially, radially
Axially, axially
Radially, axially

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Hydraulics and Fluid Mechanics in ME
Choose the wrong statement. Alcohol is used in manometer, because

Its vapour pressure is low
It provides longer length for a given pressure difference
It provides suitable meniscus for the inclined tube
Its density is less

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Tranquil flow
Torrential flow
Critical flow
Turbulent flow

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