Discussion
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- Question
Diesel used in naval applications has a minimum cetane number of
Options- A. 25
- B. 35
- C. 45
- D. 65
- Correct Answer
- 45
- 1. 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
- 2. 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
- 3. The colour of gasoline is an indication of its
Options- A. octane number.
- B. lead susceptibility.
- C. gum forming tendency & thoroughness of refining.
- D. none of these. Discuss
- 4. Flash point of motor gasoline may be around __________ °C.
Options- A. 10
- B. 45
- C. 100
- D. 150 Discuss
- 5. Solvent used in the deasphalting process is
Options- A. furfurol
- B. phenol
- C. propane
- D. hexane Discuss
- 6. Visbreaking process is used mainly for making
Options- A. high cetane diesel
- B. high octane gasoline
- C. fuel oil
- D. smoke free kerosene Discuss
- 7. Octane number of gasoline is a measure of its
Options- A. resistance to knock.
- B. ignition delay.
- C. ignition temperature.
- D. smoke point. Discuss
- 8. 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) Discuss
- 9. Casing head gasoline is the liquid
Options- A. butane.
- B. propane.
- C. natural gas.
- D. gasoline separated from wet natural gas by compression. Discuss
- 10. Cetane number of diesel used in trucks may be about
Options- A. 50
- B. 14
- C. 35
- D. 85 Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: 1
Correct Answer: catalytic reforming
Correct Answer: gum forming tendency & thoroughness of refining.
Correct Answer: 45
Correct Answer: propane
Correct Answer: fuel oil
Correct Answer: resistance to knock.
Correct Answer: all (a), (b) and (c)
Correct Answer: butane.
Correct Answer: 50
Explanation:
Generally, diesel engines operate well with a Cetane number from 40 to 55.
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