Chemical Engineering MCQs

Page No. 616

Wheat is ground into flour in a___________________?


aHammer crusher

✖


bRoller crusher

✓


cImpact mill

✖


dFluid energy mill

✖


View Answer Roller crusher

Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a__________________?


aPug mill

✓


bMixer-extruder

✖


cBanbury mixer

✖


dMuller mixer

✖


View Answer Pug mill

Fluid energy mill comes in the category of________________?


aGrinder

✖


bCrusher

✖


cCutter

✖


dUltrafine grinder

✓


View Answer Ultrafine grinder

Which of the following is used for primary crushing of very hard lumpy materials ?


aToothed roll crusher

✖


bGyratory crusher

✓


cBall mill

✖


dTube mill

✖


View Answer Gyratory crusher

Dry powdery solid materials are transported by a ______________ conveyor?


aBelt

✖


bBucket

✖


cScrew

✓


dNone of these

✖


View Answer Screw

Which is the most suitable conveyor for transportation of sticky material ?


aApron conveyor

✖


bBelt conveyor

✖


cScrew conveyor

✓


dPneumatic conveyor

✖


View Answer Screw conveyor

In classification, particles are said to be equal settling, if they have the same terminal velocities in the_______________?


aDifferent fluids

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bSame fluid

✖


cSame field of force

✖


dBoth B. and C.

✓


View Answer Both B. and C.

Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a _______________ surface?


aPlane

✖


bCurved

✖


cRibbed

✓


dEither A. or B.

✖


View Answer Ribbed

Which of the following clay mixing devices is vacuum operated for deairation of clay ?


aBanbury mixer

✖


bPug mill

✓


cMuller-mixer

✖


dNone of these

✖


View Answer Pug mill

With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge________________?


aIncreases

✓


bDecreases

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cRemains constant

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dIncreases linearly

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View Answer Increases

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