Chemical Engineering MCQs

Page No. 602

What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls?


a16°

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b32°

✓


c40°

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d46°

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View Answer 32°

Supporting legs of a plate and frame filter is normally made of________________?


aStainless steel

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bCast iron

✓


cHigh speed steel

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dWooden plank

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View Answer Cast iron

Highly viscous liquids & pastes are agitated by________________?


aPropellers

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bTurbine agitators

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cMultiple blade paddles

✓


dNone of these

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Which of the following is not an industrial screening equipment ?


aSharpies centrifuge

✓


bVibrating screen

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cGrizzly

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dTrommel

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View Answer Sharpies centrifuge

Which of the following mineral dressing operations is termed as ‘comminution’?


aPanning

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bSpiralling

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cTabling

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dNone of these

✓


View Answer None of these

200 mesh sieve size corresponds to _____________ microns?


a24

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b74

✓


c154

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d200

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View Answer 74

Which of the following is a pressure filter ?


aLeaf filter (Moore filter)

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bPlate and flame filter

✓


cRotary drum filter

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dSand filter

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Which of the following is not used as a filter medium in case of corrosive liquids?


aNylon

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bGlass cloth

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cMetal cloth of monel or stainless steel

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dCotton fabric

✓


View Answer Cotton fabric

The main size reduction operation in ultrafine grinders is_____________?


aCutting

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bAttrition

✓


cCompression

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dImpact

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View Answer Attrition

Mixing of plastic solids is generally facilitated by___________________?


aDispersion

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bMastication

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cKneading

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dNone of these

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View Answer Kneading

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