Chemical Engineering MCQs

Page No. 527

Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?


apH of the soil


bBacterial action


cHeat


dPressure


View Answer pH of the soil

Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is _______________ centistokes (or 100 Redwood I seconds) ?


a5


b25


c50


d100


View Answer 25

Aromatics have the highest ________________ of all the hydrocarbons of same carbon atoms?


aSmoke point


bOctane number


cCetane number


dViscosity


View Answer Octane number

Lane and Garton classification of petroleum is based on its ____________________?


aComposition


bSpecific gravity


cOptical properties


dViscosity


View Answer Specific gravity

Road grade bitumen is produced from vacuum residue by its ____________________?


aAeration


bPyrolysis


cHydrogenation


dSteam reforming


View Answer Steam reforming

Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ___________________?


aBoiling points


bMolecular weight


cC/H ratio


dAll A., B. and C.


View Answer All A., B. and C.

Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as ___________________?


aα-methyl naphthalene


b2-2-4 tri methyl pentane


c1, 3 butadiene


dTetra methyl ethylene



Cetane number of a diesel fuel is the measure of its____________________?


aIgnition delay


bSmoke point


cViscosity


dOxidation stability


View Answer Ignition delay

Water content in the crude oil as it comes out of oil well may be upto ______________ percent?


a2


b5


c10


d25


View Answer 25

Aniline point is the temperature at which___________________?


aEqual weight of diesel & the aniline are completely miscible


bEqual weight of aniline & the test sample are completely miscible


cEqual volume of aniline & the test sample are completely miscible


dAniline vaporises



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