Chemical Engineering MCQs

Page No. 32

Which of the following variables affects the furnace capacity ?


aTemperature of flue gas

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bThermal conductivity of stock

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cThickness of heating stock

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dAll A., B. and C.

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View Answer All A., B. and C.

The range of Mho’s scale of hardness is from________________?


a1 to 15

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b1 to 8

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c1 to10

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d0 to 10

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View Answer 1 to10

______________ possesses viscoelastic properties?


aCork

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bGlass

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cGraphite

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dRubber

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View Answer Rubber

Which of the following alloys does not contain nickel ?


aChlorinet – 2 alloy

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bMonel

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cInconel

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dBabbitt metal

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View Answer Babbitt metal

Carbon percentage in medium carbon steel is around__________________?


a0.1 to 0.35

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b0.35 to 0.5

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c0.8 to 1.4

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d1 to 1. 5

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View Answer 0.35 to 0.5

Which of the following heat treatment processes is used for softening the hardened material ?


aNormalising

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bTempering

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cAnnealing

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dNone of these

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View Answer Tempering

Interchain forces are the weakest in case of________________?


aPlastics

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bFibres

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cElastomers

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dBoth rubber & elastomers

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______________ is never shipped in glass carboys?


aAmmonia

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bAcetic acid

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cPhenol

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dFormaldehyde

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View Answer Ammonia

Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)___________________?


aDo not require heat treatment for any of its applications

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bAre used for leaf and coiled springs

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cDo not have good resilience properties

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dIs tempered at 850°C

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The fermenter used for the production of ethyl alcohol from molasses is made of________________?


aWood

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bConcrete

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cCopper bearing steel

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dPorcelain

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View Answer Copper bearing steel

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