Chemical Engineering MCQs

Page No. 234

Froude number is not a factor__________________?


aFor Reynolds number greater than 300


bWhen there is no vortex formation


cFor unbaffled tank


dNone of these



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


aReciprocating


bCentrifugal


cVolute


dRotary vacuum


View Answer Reciprocating

The discharge through a rectangular weir varies as ___________________?


aH1/2


bH5/2


cH2/5


dH3/2


View Answer H3/2

A Venturimeter measures the___________________?


aVelocity head


bPressure


cPoint velocity


dNone of these


View Answer None of these

In an incompressible flow of fluid, the fluid ________________?


aTemperature remains constant


bCompressibility is greater than zero


cDensity does not change with pressure & temperature


dIs frictionless



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


bRubber latex


cBlood


dSugar solution


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


bFlow through a converging section


cFlow of air downward in a pipe


dImpossible in a constant cross-section conduit



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


aFluid flow rate & friction loss


bLength & friction factor


cDiameter & friction factor


dLength & diameter



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


aEuler


bFroude


cMach


dWeber


View Answer Weber

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


aCorresponding to uniform flow


bMeasured normal to the channel bed


cCorresponding to steady flow


dNone of these



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