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- Question
Olefins are
Options- A. saturated hydrocarbons.
- B. unsaturated cyclic compounds (hydrocarbons).
- C. present in substantially good quantity in crude petroleum.
- D. none of these.
- Correct Answer
- none of these.
- 1. Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
Options- A. polymer
- B. unleaded
- C. casing head
- D. straight run Discuss
- 2. Pick out the wrong statement.
Options- A. Higher specific gravity of petroleum products means higher C/H ratio.
- B. Aromatics have lower specific gravity than corresponding paraffins.
- C. Hydrocarbons of low specific gravity (e.g, paraffins) possess the maximum thermal energy per unit volume.
- D. Hydrocarbons of high specific gravity (eg, aromatics) possess the maximum thermal energy per unit weight. Discuss
- 3. Pick out the wrong statement.
Options- A. Iso-paraffin crack faster than n-paraf-fin.
- B. Catalytic cracking is endothermic, but the regeneration of catalyst is exothermic.
- C. Rate of decomposition of olefins in catalytic cracking is slightly slower than the thermal cracking.
- D. None of these. Discuss
- 4. Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
Options- A. 0.1 to 0.5
- B. 1.5 to 4.5
- C. 7.5 to 12.5
- D. 15-20 Discuss
- 5. Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
Options- A. Aromatics
- B. Mercaptans
- C. Paraffins
- D. Naphthenic acid Discuss
- 6. Solvent used for dewaxing of petroleum products are
Options- A. furfural
- B. methyl ethyl ketone (MEK)
- C. propane
- D. both(b)&(c) Discuss
- 7. Which of the following categories of gasoline has the highest lead susceptibility?
Options- A. Straight run gasoline
- B. Platinum reformed gasoline
- C. Catalytical cracked gasoline
- D. Polymer gasoline Discuss
- 8. Molecular weight of crude petroleum may be around
Options- A. 50
- B. 250
- C. 1500
- D. 5000 Discuss
- 9. Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic
Options- A. cracking
- B. polymerisation
- C. reforming
- D. isomerisation Discuss
- 10. Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to
Options- A. increase the yield of light distillates.
- B. suppress coke formation.
- C. enhance the octane number of gasoline.
- D. reduce gum content in gasoline. Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: unleaded
Correct Answer: Aromatics have lower specific gravity than corresponding paraffins.
Correct Answer: Catalytic cracking is endothermic, but the regeneration of catalyst is exothermic.
Correct Answer: 1.5 to 4.5
Correct Answer: Paraffins
Correct Answer: propane
Correct Answer: Straight run gasoline
Correct Answer: 1500
Correct Answer: reforming
Correct Answer: suppress coke formation.
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