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Fluid Mechanics

Fluid Mechanics
Low specific speed of a pump implies that, it is a/an __________ pump.

Centrifugal
Mixed flow
Axial flow
None of these

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Fluid Mechanics
N²Re/NFr is called the __________ number.

Euler
Galileo
Archimedes
Brinkman

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

Dilatent fluid
Pseudo plastic fluid
Ideal plastic
None of these

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Fluid Mechanics
A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is

< Δp
Δp
Δp²
> Δp

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Fluid Mechanics
In deriving Bernoulli's equation, fluid is assumed to be

Steady, density being pressure dependent, frictionless
Incompressible, frictionless, steady, along a streamline
Uniform, steady, incompressible, along a streamline
None of these

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Fluid Mechanics
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

Specific gravity
Electrical resistivity
Thermal conductivity
Electrical conductivity

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