Chemical Engineering MCQs

Page No. 600

Weber number is significant and is concerned with the_________________?


aSolid-liquid mixing

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bLiquid-liquid mixing

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cDispersion of liquid in liquid

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dSuspension of solid in liquid

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The unit of specific cake resistance is______________________?


agm/cm2

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bcm/gm

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ccm/gm2

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dgm/gm

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View Answer gm/cm2

Colloidal mills are used for ______________ grinding?


aCoarse

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bIntermediate

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cFine

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dUltrafine

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View Answer Ultrafine

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


aParabola

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bStraight line

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cHyperbola

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dExponential curve

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View Answer Parabola

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


aEnters the cyclone from the top

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bIs admitted tangentially at high velocity

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cDevelops a helical motion inside the chamber

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dBoth B. and C.

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View Answer Both B. and C.

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


aTabling

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bElutriation

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cHeavy media separation

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dNone of these

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


aCartridge filter

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bRotary drum vacuum filter

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cPressure filter thickener

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dPlate and frame filter press

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


a1

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b50

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c100

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d500

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View Answer 1

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


a0.2 to 0.8

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b5 to 25

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c50 to 100

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d100 to 250

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View Answer 0.2 to 0.8

_____________ mills are termed as disintegrators?


aCage

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bCompartment

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cPebble

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dAll tumbling

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View Answer Cage

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