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Fluid Mechanics

Fluid Mechanics
Bernoulli's equation is not applicable, when the flow is

Viscous
Irrotational
Incompressible
All of these

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Fluid Mechanics
While starting an axial flow pump, its delivery valve should be kept

Closed
None of these
Open
Either open or closed

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Fluid Mechanics
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?

Unsteady
Rotational
Turbulent
Non-uniform

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Fluid Mechanics
The value of critical Reynolds number for pipe flow is

1300
100000
None of these
10000

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Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

Achieve the exact delivery pressure
Save power in compressing a given volume to a given pressure
None of these
Cool the delivered air

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Fluid Mechanics
In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)

Vavg
1.8 Vavg
1.5 Vavg
1.2 Vavg

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