Discussion
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- Question
Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?
Options- A. Paraffins
- B. Naphthenes
- C. Aromatics
- D. Iso-paraffins
- Correct Answer
- Paraffins
- 1. Smoke volatility index is equal to smoke point plus
Options- A. 0.42 x(% distilled at 204°C)
- B. 5 mm
- C. 0.84 x (% distilled at 204°C)
- D. 10 mm. approximately Discuss
- 2. Which is the most effective catalyst used in catalytic cracking of petroleum products?
Options- A. Iron oxide
- B. Nickel
- C. Vanadium pentoxide
- D. Zeolite Discuss
- 3. 95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C.
Options- A. 2
- B. -40
- C. 30
- D. 55 Discuss
- 4. Petroleum
Options- A. is optically active.
- B. constitutes mainly of olefins.
- C. does not contain asphalt.
- D. does not contain aromatics. Discuss
- 5. The most commonly used feed stock for the reforming reactor is
Options- A. heavy fuel oil
- B. residuum
- C. straight run gasdine
- D. casing head gasoline Discuss
- 6. Petroleum is believed to have originated from __________ sources.
Options- A. vegetable
- B. animal
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 7. Choose the correct statement.
Options- A. Octane number of i-octane is zero.
- B. Octane number of paraffins increases with increasing number of carbon atoms.
- C. Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms.
- D. The aromatics have lower octane number than naphthenes with same number of carbon atoms. Discuss
- 8. Operating temperature and pressure in catalytic reforming is about
Options- A. 1-5 Kgf/cm2 & 200°C.
- B. 15-45 Kgf/cm2 & 450-550°C.
- C. 50 - 75 kgf/cm2 & 600 - 800°C.
- D. 5-10 kgf/cm2 & 150 - 250°C. Discuss
- 9. The catalytic cracking of heavier petroleum fraction is done to produce mainly
Options- A. gasoline
- B. asphalt
- C. diesel oil
- D. tar Discuss
- 10. The characterisation factor of a crude oil is calculated as 12.5. It means that; it is
Options- A. paraffinic
- B. naphthenic
- C. intermediate
- D. none of these Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: 0.42 x(% distilled at 204°C)
Correct Answer: Zeolite
Correct Answer: 2
Correct Answer: is optically active.
Correct Answer: straight run gasdine
Correct Answer: both (a) and (b)
Correct Answer: Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms.
Correct Answer: 15-45 Kgf/cm2 & 450-550°C.
Correct Answer: diesel oil
Correct Answer: paraffinic
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