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Fluid Mechanics

Fluid Mechanics
If the head over the triangular notch is doubled, the discharge will increase by __________ times.

4
5.657
2
2.828

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Fluid Mechanics
Curve III in the above diagram represents a/an

Dilatent fluid
None of these
Pseudo plastic fluid
Ideal plastic

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Fluid Mechanics
Which of the following pipe bends will incur the largest head loss ?

30° bend
90° bend
U-bend
45° bend

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Fluid Mechanics
Momentum transfer in laminar flow of fluids results due to the

None of these
Velocity gradient
Density
Viscosity

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Fluid Mechanics
Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.)

√d
d1/3
d4/5
d2/3

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Fluid Mechanics
The Mach number for hypersonic flow of compressible fluid is

< 2
> 4
> 1
1

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