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.Management Sciences
Category: Petroleum Refinery Engineering
Which is the most undesirable component in kerosene ?
A. Aromatics
B. i-paraffins
C. n-paraffins
D. Naphthenes
Smoke point of kerosene is the_______________?
A. Time after which smoking starts on burning
B. Temperature at which smoking starts
C. Maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp
D. None of these
Illuminating characteristics of kerosene is expressed by its_____________?
A. Smoke point
B. Aniline point
C. Luminosity number
D. Aromatic content
Pick out the wrong statement ?
A. Iso-paraffin crack faster than n-paraffin.
B. Catalytic cracking is endothermic, but the regeneration of catalyst is exothermic
C. Rate of decomposition of olefins in catalytic cracking is slightly slower than the thermal cracking
D. None of these
Sweetening of petroleum product means the removal of ______________________?
A. Sulphur & its compounds
B. Water
C. Organic impurities
D. Wax
Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses _______________ as catalyst?
A. Bauxite
B. Fuller’s earth
C. Activated clay
D. All A., B. & C.
The solvent used in Barisol dewaxing process is_____________________?
A. Hexane
B. Furfural
C. Benzol and ethylene dichloride
D. Methyl ethyl ketone (MEK)
Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?
A. Naphtha
B. Petrol
C. Kerosene
D. Heavy fuel oil
With increase in the molecular weight of aromatic present in kerosene, its smoking tendency ?
A. Increases
B. Decreases
C. Remain same
D. Is unpredictable
The yield of straight run LPG from crude oil is about ______________ weight percent?
A. 20-25
B. 1-1.5
C. 10-15
D. 0.1-0.2
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