Chemical Engineering MCQs

Page No. 234

Froude number is not a factor__________________?


aFor Reynolds number greater than 300

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bWhen there is no vortex formation

✓


cFor unbaffled tank

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dNone of these

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To handle smaller quantity of fluid at higher discharge pressure, use a ______________ pump?


aReciprocating

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bCentrifugal

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cVolute

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dRotary vacuum

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View Answer Reciprocating

The discharge through a rectangular weir varies as ___________________?


aH1/2

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bH5/2

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cH2/5

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dH3/2

✓


View Answer H3/2

A Venturimeter measures the___________________?


aVelocity head

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bPressure

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cPoint velocity

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dNone of these

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View Answer None of these

In an incompressible flow of fluid, the fluid ________________?


aTemperature remains constant

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bCompressibility is greater than zero

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cDensity does not change with pressure & temperature

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dIs frictionless

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An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonian fluid beyond yield stress. Which of the following is an ideal plastic ?


aSewage sludge

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bRubber latex

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cBlood

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dSugar solution

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View Answer Sewage sludge

In which of the following cases, it is possible for flow to occur from low pressure to high pressure ?


aFlow of liquid upward in a vertical pipe

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bFlow through a converging section

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cFlow of air downward in a pipe

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dImpossible in a constant cross-section conduit

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Two piping system are said to be equivalent, when the ______________ are same?


aFluid flow rate & friction loss

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bLength & friction factor

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cDiameter & friction factor

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dLength & diameter

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Ratio of inertial forces to surface tension forces is called the _____________ number?


aEuler

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bFroude

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cMach

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dWeber

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View Answer Weber

Normal depth in open channel flow is the depth of flow in the channel ____________________?


aCorresponding to uniform flow

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bMeasured normal to the channel bed

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cCorresponding to steady flow

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dNone of these

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