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Fluid Mechanics

Fluid Mechanics
Laminar flow is characterised by the nonexistence of

All of these
Eddies
Pressure fluctuation
Deviating velocities

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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

30
90
45
60

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Fluid Mechanics
The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec.

1.8
736.4
12.4
186.2

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Fluid Mechanics
In laminar flow through a round tube, the discharge varies

Inversely as the viscosity
As the square of the radius
Inversely as the pressure drop
Linearly as the viscosity

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Fluid Mechanics
A fluid is pumped at the rate of 10 lb/sec to a height of 55 ft. The horse power required is __________ hp.

5.5
1
20090
20363

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Fluid Mechanics
With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

Decreases
Increases
Remains constant
Increases linearly

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MORE MCQ ON Fluid Mechanics

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