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.Management Sciences
Category: Petroleum Refinery Engineering
Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of ____________________?
0
A. Thermal cracking
B. Gum formation
C. Coking
D. Discoloration
Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with __________________?
A. Methyl alcohol
B. Ethyl alcohol
C. Methane
D. Ethane
Asphalts are _________________?
A. Low molecular weight & low boiling point compounds present in petroleum
B. Desirable in catalytic cracking feedstock, because they produce coke
C. Readily oxidisable and form carbonaceous sludge
D. All A., B. & C.
Naphthenic acid is represented by ___________________?
A. CnH2n+2O2
B. CnH2n-2O2
C. CnH2n+2O2 (n ≥ 6)
D. CnH2n+6O2 (n ≤ 6)
Which of the following has the lowest cetane number ?
A. Aromatics
B. i-paraffins
C. Naphthene
D. Olefins
Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about _____________ kms?
A. 0.1 to 0.5
B. 1.5 to 4.5
C. 7.5 to 12.5
D. 15-20
Aniline point is the _________________?
A. Characteristic property of diesel & lubricating oils
B. Measure of aromatic content of oil
C. Both A. and B.
D. Neither A. nor B.
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