Chemical Engineering MCQs

Page No. 537

Which of the following fractions of petroleum contains maximum sulphur ?


aDiesel


bGasoline


cNaphtha


dAtmospheric residue


View Answer Atmospheric residue

Good quality kerosene should have__________________?


aLow smoke point


bHigh smoke point


cHigh aromatics content


dLow paraffins content


View Answer High smoke point

Catalyst used in alkylation process is__________________?


aSulphuric acid


bNickel


cSilica gel


dAlumina


View Answer Sulphuric acid

Cracking is___________________?


aAn exothermic reaction


bAn endothermic reaction


cFavoured at very low temperature


dNone of these



Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?


aLess than 90% promotes polymerisation


bMore than 98% promotes cracking


cBoth A. and B.


dNeither A. nor B.


View Answer Both A. and B.

The conductivity of crude oil-water mixture depends on the__________________?


apH value


bWater percentage


cTemperature


dAll A., B. and C.


View Answer All A., B. and C.

Octane number of n-heptane is assumed to be_________________?


a100


b0


c70


d


View Answer 0

Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners ?


aPCM


bTar


cLight diesel oil


dLow viscosity furnace oil


View Answer Light diesel oil

Catalyst used in isomerisation process is __________________ ?


aH2SO4


bH3PO4


cHF


dAlCl3


View Answer AlCl3

Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than ________________ mg/kg of kerosene?


a1


b20


c100


d500


View Answer 20

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