Chemical Engineering · all questions

Fluid Mechanics
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Q441

Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid.

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Q442

Small pressure differences in liquids is measured using a/an

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Q443

Bernoulli's equation accounts for the

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Q444

For steady ideal fluid flow, the Bernoulli's equation states that the

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Q445

Which of the following is not dimension-less?

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Q446

Turbulent flow generally occurs for cases involving

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Q447

Where does the maximum stress occur in case of laminar flow of incompressible fluid in a closed conduit of diameter 'd'?

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Q448

The ratio of maximum to average velocity in case of streamline flow between parallel plates is

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Q449

Pick out the wrong statement.

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Q450

The pressure head of a flow meter remains constant for

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Q451

For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to

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Q452

When a fluid flows over a solid surface, the

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Q453

Which of the following can be used for the direct measurement of volumetric flow rate of slurry?

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Q454

In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is

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Q455

Minimum porosity for fluidisation is

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Q456

For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is

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Q457

Efficiency of power transmission (η) through a circular pipe is given by

\frac{h _{t} - h _{f}}{h _{t}},

which has a maximum value of __________ percent.

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Q458

A centrifugal pump has the following specifications:
Power = 4 H.P.; Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.
If its speed is halved, the power consumed now will be __________ hp.

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Q459

Pick out the wrong statement pertaining to fluid flow.

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Q460

The discharge co-efficient for an orificemeter does not depend upon the

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