Chemical Engineering MCQs

Page No. 515

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


aGasoline

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bAsphalt

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cDiesel oil

✓


dTar

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View Answer Diesel oil

Hydrofining is the most recent and effective method for the____________________ ?


aRemoval of sulphur

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bImprovement of smoke point

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cReduction of breathing loss

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dImprovement of viscosity index

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View Answer Removal of sulphur

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


ai-paraffins

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bAromatics

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cn-paraffins

✓


dNaphthenes

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View Answer n-paraffins

Petroleum is believed to have originated from _______________ sources?


aVegetable

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bAnimal

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cBoth A. and B.

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dNeither A. nor B.

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View Answer Both A. and B.

LSHS is a type of furnace oil, which_____________________?


aIs more viscous than high viscosity furnace oil (HVFO)

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bStands for low sulphur heavy stock

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

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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

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b1-1.5

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c10-15

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d0.1-0.2

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View Answer 1-1.5

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


aWax content

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bSpontaneous ignition temperature

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cKnocking tendency

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dSulphur content

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Petroleum coke is used mainly in the __________________ ?


aDiscoloration of yellow glycerine

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bSugar refining

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cManufacture of carbon electrode

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dBlast furnace for reduction of iron ore

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


a87 & 94

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b94 & 87

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c94 & 100

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d83 & 100

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View Answer 87 & 94

Which one is preferred for aircraft engine ?


aHigh viscosity index lube oil

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bLow viscosity index lube oil

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cHigh freezing point aviation fuel

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dNone of these

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