600-750
250-350
1000-1500
2000-2500
✅ The correct answer is option A.
Petroleum Refinery Engineering MCQs
92. Molecular weight of crude petroleum may be around
50
250
1500
5000
✅ The correct answer is option B.
93. High aniline point of a petrofuel (say diesel) indicates that
it is highly aromatic in nature.
it is highly paraffinic in nature.
it has a very low diesel index.
its ignition quality is very poor.
✅ The correct answer is option B.
94. High aniline point of diesel indicates that, it
is highly aromatic.
has a large ignition delay.
is highly paraffinic.
has a low diesel index.
✅ The correct answer is option C.
95. Which of the following is used as a catalyst in fluidised bed catalytic cracking ?
Silica-magnesia
Silica-alumina
Bentonite clays
All (a), (b) and (c)
✅ The correct answer is option D.
96. Presence of aromatics in
diesel increases its cetane number.
kerosene increases its smoke point.
petrol increases its octane number.
all (a), (b) and (c).
✅ The correct answer is option C.
97. In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.
sulphur increases
sulphur decreases
nitrogen decreases
none of these
✅ The correct answer is option A.
98. Aniline point test of an oil qualitatively indicates the __________ content of an oil.
paraffin
olefin
aromatic
naphthene
✅ The correct answer is option C.
99. Which of the following gasolines (unleaded) has the least octane number ?
Catalytically cracked gasoline
Straight run gasoline
Catalytically reformed gasoline
Polymer gasoline
✅ The correct answer is option B.
100. Which of the following has the maximum °API gravity of all?
Diesel
Kerosene
Petrol
Furnace oil
✅ The correct answer is option C.