Chemical Engineering MCQs

Page No. 600

Weber number is significant and is concerned with the_________________?


aSolid-liquid mixing


bLiquid-liquid mixing


cDispersion of liquid in liquid


dSuspension of solid in liquid



The unit of specific cake resistance is______________________?


agm/cm2


bcm/gm


ccm/gm2


dgm/gm


View Answer gm/cm2

Colloidal mills are used for ______________ grinding?


aCoarse


bIntermediate


cFine


dUltrafine


View Answer Ultrafine

Which of the following represents the plot of filtrate volume versus time for constant pressure filtration ?


aParabola


bStraight line


cHyperbola


dExponential curve


View Answer Parabola

In the cyclone separator used for separation of dust from dust laden gas, the gas ?


aEnters the cyclone from the top


bIs admitted tangentially at high velocity


cDevelops a helical motion inside the chamber


dBoth B. and C.


View Answer Both B. and C.

The study on washability of coal is done by using the _____________ technique?


aTabling


bElutriation


cHeavy media separation


dNone of these



______________ is used for producing a thick suspension from a thin slurry?


aCartridge filter


bRotary drum vacuum filter


cPressure filter thickener


dPlate and frame filter press



The speed of a rotary drum vacuum filter may be about _____________ rpm?


a1


b50


c100


d500


View Answer 1

Vibrating screens have capacity in the range of ______________ tons/ft2 .mm mesh size?


a0.2 to 0.8


b5 to 25


c50 to 100


d100 to 250


View Answer 0.2 to 0.8

_____________ mills are termed as disintegrators?


aCage


bCompartment


cPebble


dAll tumbling


View Answer Cage

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