Chemical Engineering · all questions

Fluid Mechanics
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Q381

In turbulent flow, a rough pipe has the same friction factor as a smooth pipe

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Q382

In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure __________ the vapor pressure of the liquid at the suction temperature.

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Q383

Drag co-efficient for motion of spherical particles in a stationary fluid in the stoke's law range is

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Q384

Vena-contracta formed during flow of a liquid through an orificemeter has

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Q385

Hydraulic intensifier is used for increasing the

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Q386

In case of end to end connection of two or more pipes in series, the __________ each pipe.

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Q387

For the manometer set up shown in the figure, the pressure difference PA - PB is given by

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Q388

Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).

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Q389

The time of oscillation of a floating body is

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Q390

The line traced by a single fluid particle as it moves over a period of time is called __________ line.

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Q391

The dimension of surface tension is

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Q392

With a constant diameter impeller of a centrifugal pump

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Q393

In a fluidised bed reactor

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Q394

In a free vortex, the

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Q395

The friction factor for turbulent flow in a hydraulically smooth pipe

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Q396

Water hammer in a pipeline results from the

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Q397

Air vessel provided in a reciprocating pump is for

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Q398

Speed of sound in an ideal gas depends on its

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Q399

Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump?

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Q400

In continuous fluidisation

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