Chemical Engineering MCQs

Page No. 518

Alkylation_____________________?


aCauses olefins to combine with each other


bCauses olefins to combine with iso-paraffins


cConverts iso-paraffin into olefin


dConverts olefin into paraffin



Illuminating characteristics of kerosene is expressed by its_____________?


aSmoke point


bAniline point


cLuminosity number


dAromatic content


View Answer Luminosity number

Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about ______________ kg/cm2?


a1.5


b3


c6


d12


View Answer 3

Crude oil produced by Indian oil fields are predominantly _______________ in nature?


aParaffinic


bNaphthenic


cAsphaltic


dMixed base


View Answer Asphaltic

Complete removal of _____________ from gasoline is done by Unisol process using caustic soda and methyl alcohol?


aWaxes


bMercaptans


cAsphalt


dDiolefins


View Answer Mercaptans

Which of the following has the lowest flash point of all ?


aDiesel


bKerosene


cPetrol


dFurnace oil


View Answer Petrol

High aniline point of diesel indicates that, it _____________________?


aIs highly aromatic


bHas a large ignition delay


cIs highly paraffinic


dHas a low diesel index


View Answer Is highly paraffinic

Flash point of motor gasoline may be around ______________ °C?


a10


b45


c100


d150


View Answer 45

Which of the following has the highest viscosity of all (at a given temperature) ?


aNaphtha


bFuel oil


cLight diesel oil


dPetrol


View Answer Fuel oil

Viscosity index of a lubricating oil_________________?


aIs the measure of its flash point


bIs the measure of variation of viscosity with temperature


cShould be low


dNone of these



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