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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

decreases
unpredictable
remains unaffected
increases

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Hydraulics and Fluid Mechanics in ME
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

Keeps on decreasing
May increase/decrease
Remain constant
Keeps on increasing

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Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

All of these
Orifice plate
pitot tube
Venturimeter

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Hydraulics and Fluid Mechanics in ME
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

More than
Less than
Equal to
None of these

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Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

4 m of water column
3 metres of water column
3.5 metres of water column
2 metres of water column

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

Divide
Multiply
Plus
Minus

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