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Fluid Mechanics

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

None of these
Pseudo plastic fluid
Dilatent fluid
Ideal plastic

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Fluid Mechanics
Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary.

II, IV, V
I, II, V
I, II, III
II, III, V

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Fluid Mechanics
Cavitation in a centrifugal pump results from

High discharge rate
Low barometric pressure
High discharge velocity
High discharge pressure

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Fluid Mechanics
A venturimeter can not be used for the direct measurement of

Datum difference in the stretch of pipeflow
All of these
Friction loss in pipe flow
Pressure difference in the flow throughpipeline

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Fluid Mechanics
The Stoke's stream function applies to the

Cases of axial symmetry
None of these
Ideal/non-viscous fluids only
Irrotational flow only

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Fluid Mechanics
For an unstable equilibrium of a floating body (where, M = metacentre.)

M & G coincide
M is above G
None of these
M is below G

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