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Chemical Engineering
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Petroleum Refinery Engineering
Comments
Question
With increase in the molecular weight of aromatic present in kerosene, its smoking tendency
Options
A. increases
B. decreases
C. remains same
D. is unpredictable
Correct Answer
increases
Petroleum Refinery Engineering problems
Search Results
1. Paraffins are desirable in lubricating oil, as it has got high
Options
A. viscosity
B. viscosity index
C. smoke point
D. pour point
Show Answer
Scratch Pad
Discuss
Correct Answer: smoke point
2. Waxes present in petroleum products
Options
A. can be separated out by distillation.
B. are not soluble in them.
C. crystallise out at low temperature.
D. decrease their viscosity.
Show Answer
Scratch Pad
Discuss
Correct Answer: crystallise out at low temperature.
3. Feed for reforming is generally
Options
A. naphtha or straight run gasoline.
B. reduced crude.
C. vacuum gas oil.
D. atmospheric gas oil.
Show Answer
Scratch Pad
Discuss
Correct Answer: naphtha or straight run gasoline.
4. Cracking is
Options
A. an exothermic reaction.
B. an endothermic reaction.
C. favoured at very low temperature.
D. none of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: an endothermic reaction.
5. Which of the following is not an important property of fuel oil/furnace oil?
Options
A. Sulphur content
B. Viscosity
C. Aniline point
D. Flash point
Show Answer
Scratch Pad
Discuss
Correct Answer: Aniline point
6. Water separometer index (modified) (WSIM) of a petrofuel is the measure of its
Options
A. emulsification tendency.
B. water separation characteristics.
C. water content.
D. water absorbing capacity from atmosphere.
Show Answer
Scratch Pad
Discuss
Correct Answer: water separation characteristics.
7. Good quality kerosene should have
Options
A. low smoke point.
B. high smoke point.
C. high aromatics content.
D. low paraffins content.
Show Answer
Scratch Pad
Discuss
Correct Answer: high smoke point.
8. Which of the following has the lowest cetane number?
Options
A. Aromatics
B.
i
-paraffins
C. Naphthene
D. Olefins
E.
n
-paraffins
Show Answer
Scratch Pad
Discuss
Correct Answer: Aromatics
9. Highest quality bitumen is produced from the __________ crude oil.
Options
A. paraffinic
B. naphthenic
C. intermediate
D. mixed
Show Answer
Scratch Pad
Discuss
Correct Answer: naphthenic
10. Pressure & temperature maintained in catalytic cracking is about
Options
A. 2atm & 500°C
B. 10atm & 500°C
C. 30atm & 200°C
D. 50atm. & 750°C
Show Answer
Scratch Pad
Discuss
Correct Answer: 2atm & 500°C
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