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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

high density and viscosity
surface tension is no criterion
lower surface tension
higher surface tension

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Hydraulics and Fluid Mechanics in ME
The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

Increases
Decreases
None of these
Remain same

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Hydraulics and Fluid Mechanics in ME
The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

More than
None of these
Less than
Equal to

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Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

More than
Equal
None of these
Less than

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of rectangular section will be maximum, if

Its depth is twice the breadth
Its depth is thrice the breadth
Its breadth is thrice the depth
Its breadth is twice the depth

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Hydraulics and Fluid Mechanics in ME
Gauge pressure at a point is equal to the absolute pressure ___ the atmospheric pressure.

Minus
Divide
Plus
Multiply

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