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Fluid Mechanics

Fluid Mechanics
The unit of bulk modulus of elasticity for a liquid in S.I. unit is

N/m³
N/m²
N
N/m

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Fluid Mechanics
Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.

Static
Manometric
Total
Friction

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Fluid Mechanics
The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.

None of these
Bingham
Newtonion
Perfect

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Fluid Mechanics
The ratio of inertial forces to viscous forces is called the __________ number.

Reynold
Weber
Froude
Mach

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

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

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Fluid Mechanics
The hydrodynamic and thermal boundary layers will merge, when

Prandtl number is one
Archimedes number is greater than 10000
Nusselt number tends to infinity
Schmidt number tends to infinity

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