Discussion
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- Question
Mercaptans are
Options- A. low boiling sulphur compounds.
- B. added in LPG cylinders to detect gas leakage by its smell.
- C. undesirable in petrol, as they reduce its octane number.
- D. all (a), (b) and (c)
- Correct Answer
- all (a), (b) and (c)
- 1. Octane number of gasoline is a measure of its
Options- A. resistance to knock.
- B. ignition delay.
- C. ignition temperature.
- D. smoke point. Discuss
- 2. Visbreaking process is used mainly for making
Options- A. high cetane diesel
- B. high octane gasoline
- C. fuel oil
- D. smoke free kerosene Discuss
- 3. Diesel used in naval applications has a minimum cetane number of
Options- A. 25
- B. 35
- C. 45
- D. 65 Discuss
- 4. Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Options- A. 0.1
- B. 1
- C. 2.5
- D. 3.5 Discuss
- 5. In petroleum refining, the process used for conversion of hydrocarbons to aromatics is
Options- A. catalytic cracking
- B. catalytic reforming
- C. hydrotreating
- D. alkylation Discuss
- 6. Casing head gasoline is the liquid
Options- A. butane.
- B. propane.
- C. natural gas.
- D. gasoline separated from wet natural gas by compression. Discuss
- 7. Cetane number of diesel used in trucks may be about
Options- A. 50
- B. 14
- C. 35
- D. 85 Discuss
- 8. Pour point and freezing point is equal for
Options- A. petrol
- B. diesel
- C. water
- D. crude petroleum Discuss
- 9. Furfural solvent extraction is used for upgrading (by dissolving aromatics)
Options- A. naphtha
- B. lubricating oils
- C. wax
- D. cracking feedstock Discuss
- 10. The octane number of aviation gasoline may be
Options- A. 79
- B. 87
- C. 97
- D. >100 Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: resistance to knock.
Correct Answer: fuel oil
Correct Answer: 45
Correct Answer: 1
Correct Answer: catalytic reforming
Correct Answer: butane.
Correct Answer: 50
Explanation:
Generally, diesel engines operate well with a Cetane number from 40 to 55.
Correct Answer: water
Correct Answer: lubricating oils
Correct Answer: >100
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