Chemical Engineering MCQs

Page No. 589

Separation of solid particles based on their densities is called_________________?


aSizing


bSorting


cClarification


dDispersion


View Answer Sorting

Dust laden air can be purified using a____________________?


aCyclone separator


bBag filter


cGravity settler


dTubular centrifuge


View Answer Cyclone separator

For the transportation of ultrafine particles, the equipment used is a ____________ conveyor?


aBelt


bPneumatic


cScrew


dNone of these


View Answer Pneumatic

Coal is finally pulverised to 200 mesh size for burning in boilers by a___________________?


aHammer crusher


bBall mill


cRoll crusher


dGyratory crusher


View Answer Ball mill

_____________ are mixed using ribbon blenders ?


aLumpy solids and low viscosity liquids


bDry powders


cHigh viscosity liquids


dThick pastes


View Answer Dry powders

Reduction ratio of crushers is the___________________?


aRatio of feed opening to discharge opening


bRatio of discharge opening to feed opening


cDetermining factor for minimum dia of the feed and the product


dNone of these



Which of the following is not a revolving/tumbling mill used for size reduction ?


aCompartment mill


bPebble mill


cCage mill


dRod mill


View Answer Cage mill

Tank filter (e.g., Nutsche filter) is___________________?


aA high pressure filter


bA continuous filter


cUsed for small scale filtration work


dA leaf filter



The process opposite to ‘dispersion’ is termed as the___________________?


aFlocculation


bSedimentation


cFiltration


dNone of these


View Answer Flocculation

Screen capacity is proportional to (where, S = screen aperture)____________________?


aS


b1/S


cS2


d√S


View Answer S

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