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Fluid Mechanics

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

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

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Fluid Mechanics
The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid.

Dilatant
Newtonion
Bingham plastic
Pseudoplastic

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Fluid Mechanics
For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively).

None of these
B is above G
G is above B
B & G coincide

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Fluid Mechanics
Which of the following is the most common pump for pumping either raw sewage or sludge?

Centrifugal pump
Electromagnetic pump
Reciprocating pump
Gear pump

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Fluid Mechanics
Priming of a centrifugal pump is done to

Increase the mass flow rate of fluid
None of these
Develop effective pressure rise by the pump
Avoid chances of separation inside the impeller

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Fluid Mechanics
Potential flow is the flow of

Incompressible fluids with no shear
Compressible fluids with shear
Compressible fluids with no shear
Incompressible fluids with shear

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