Discussion
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- Question
Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C?
Options- A. Naphtha
- B. Petrol
- C. Kerosene
- D. Heavy fuel oil
- Correct Answer
- Heavy fuel oil
- 1. Crude topping column operates at __________ pressure.
Options- A. atmospheric
- B. 10 atm
- C. vacuum
- D. 3 atm. Discuss
- 2. Increase in the specific gravity of petroleum products indicates
Options- A. decrease in paraffin content.
- B. increase in thermal energy per unit weight.
- C. increase in aromatic content.
- D. higher H/C ratio. Discuss
- 3. The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
Options- A. obviate catalyst poisoning.
- B. maintain the reaction temperature.
- C. sustain the reactor pressure.
- D. hydrogenate the feed stock. Discuss
- 4. The general formula of naphthenes is
Options- A. CnH2n + 2
- B. CnH2n-6 (where, n ? 6)
- C. CnHn-4
- D. same as that for olefins i.e. CnH2n Discuss
- 5. Which of the following is an additive used for improving the cetane number of diesel?
Options- A. Tetraethyl lead
- B. Tetramethyllead
- C. Ethyl nitrate or acetone
- D. None of these Discuss
- 6. True vapour pressure of a petroleum fraction __________ Reid vapour pressure.
Options- A. is less than
- B. is more than
- C. is same as
- D. may be either more or less than Discuss
- 7. Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with
Options- A. methyl alcohol
- B. ethyl alcohol
- C. methane
- D. ethane Discuss
- 8. Which of the following is the most widely used cracking process in oil refineries?
Options- A. Dubbs process.
- B. T.C.C. moving bed process.
- C. Fluidised bed catalytic cracking process.
- D. Houdry's fixed bed process. Discuss
- 9. Hydrogen percentage (by weight) in crude petroleum may be about
Options- A. 5
- B. 15
- C. 25
- D. 35 Discuss
- 10. The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
Options- A. 3
- B. 300
- C. 3000
- D. 1000 Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: atmospheric
Correct Answer: decrease in paraffin content.
Correct Answer: sustain the reactor pressure.
Correct Answer: same as that for olefins i.e. CnH2n
Correct Answer: Tetraethyl lead
Correct Answer: is more than
Correct Answer: methyl alcohol
Correct Answer: Fluidised bed catalytic cracking process.
Correct Answer: 15
Correct Answer: 3
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