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Fluid Mechanics

Fluid Mechanics
Momentum transfer in laminar flow of fluids results due to the

Viscosity
Velocity gradient
Density
None of these

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Fluid Mechanics
Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m³, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is

90
45
30
60

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Fluid Mechanics
Permanent pressure loss in a well designed venturimeter is about __________ percent of the venturi differential.

30
10
1
50

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Fluid Mechanics
Bernoull's equation does not apply to the functioning of a/an

Pitot tube
None of these
Orificem
Venturimeter

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Fluid Mechanics
For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of

2
43832
>2

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Fluid Mechanics
Lower BWG means __________ of the tube.

Outer diameter
Lower cross-section
Lower thickness
Inner diameter

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