Chemical Engineering MCQs

Page No. 515

The catalytic cracking of heavier petroleum fraction is done to produce mainly____________________?


aGasoline


bAsphalt


cDiesel oil


dTar


View Answer Diesel oil

Hydrofining is the most recent and effective method for the____________________ ?


aRemoval of sulphur


bImprovement of smoke point


cReduction of breathing loss


dImprovement of viscosity index


View Answer Removal of sulphur

Which is the most desirable component of a good quality kerosene ?


ai-paraffins


bAromatics


cn-paraffins


dNaphthenes


View Answer n-paraffins

Petroleum is believed to have originated from _______________ sources?


aVegetable


bAnimal


cBoth A. and B.


dNeither A. nor B.


View Answer Both A. and B.

LSHS is a type of furnace oil, which_____________________?


aIs more viscous than high viscosity furnace oil (HVFO)


bStands for low sulphur heavy stock


cIs an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%)


dAll A., B. and C.


View Answer All A., B. and C.

The yield of straight run LPG from crude oil is about ______________ weight percent?


a20-25


b1-1.5


c10-15


d0.1-0.2


View Answer 1-1.5

Performance number of a liquid fuel is related to its __________________?


aWax content


bSpontaneous ignition temperature


cKnocking tendency


dSulphur content



Petroleum coke is used mainly in the __________________ ?


aDiscoloration of yellow glycerine


bSugar refining


cManufacture of carbon electrode


dBlast furnace for reduction of iron ore



Octane numbers of motor gasoline used in India and America are respectively________________?


a87 & 94


b94 & 87


c94 & 100


d83 & 100


View Answer 87 & 94

Which one is preferred for aircraft engine ?


aHigh viscosity index lube oil


bLow viscosity index lube oil


cHigh freezing point aviation fuel


dNone of these



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