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Fluid Mechanics

Fluid Mechanics
__________ is an example of axial flow impeller.

Propeller
Turbine
Paddle
All of these

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Fluid Mechanics
Design of the casing of centrifugal pump should be such as to minimise the

Loss of static head
Loss of kinetic head
None of these
Back flow through impeller

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Fluid Mechanics
For water, when the pressure increases, the viscosity

Also increases
Remains constant
First decreases, and then increases
Decreases

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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
Thermal conductivity
Electrical resistivity
Electrical conductivity

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Fluid Mechanics
The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by(where, x = each side of the square duct)

πx
2x
x/2
x

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Fluid Mechanics
Power number is the ratio of

Inertial stress to drag stress
Gravitational stress to drag stress
Inertial stress to gravitational stress
Drag stress to inertial stress

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MORE MCQ ON Fluid Mechanics

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