Chemical Engineering MCQs

Page No. 32

Which of the following variables affects the furnace capacity ?


aTemperature of flue gas


bThermal conductivity of stock


cThickness of heating stock


dAll A., B. and C.


View Answer All A., B. and C.

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


a1 to 15


b1 to 8


c1 to10


d0 to 10


View Answer 1 to10

______________ possesses viscoelastic properties?


aCork


bGlass


cGraphite


dRubber


View Answer Rubber

Which of the following alloys does not contain nickel ?


aChlorinet – 2 alloy


bMonel


cInconel


dBabbitt metal


View Answer Babbitt metal

Carbon percentage in medium carbon steel is around__________________?


a0.1 to 0.35


b0.35 to 0.5


c0.8 to 1.4


d1 to 1. 5


View Answer 0.35 to 0.5

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


aNormalising


bTempering


cAnnealing


dNone of these


View Answer Tempering

Interchain forces are the weakest in case of________________?


aPlastics


bFibres


cElastomers


dBoth rubber & elastomers



______________ is never shipped in glass carboys?


aAmmonia


bAcetic acid


cPhenol


dFormaldehyde


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


bAre used for leaf and coiled springs


cDo not have good resilience properties


dIs tempered at 850°C



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


aWood


bConcrete


cCopper bearing steel


dPorcelain


View Answer Copper bearing steel

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