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- Question
Which of the following reactions is undesirable in the production of catalytically reformed gasoline?
Options- A. Dehydrogenation of naphthene
- B. Dehydrogenation of lower paraffins
- C. Dehydrocyclisation of higher paraffins
- D. Isomerisation of paraffins
- Correct Answer
- Dehydrogenation of lower paraffins
- 1. The most important property for a jet fuel is its
Options- A. viscosity
- B. freezing point
- C. calorific value
- D. flash point Discuss
- 2. Which of the following is the most important property for a jet fuel?
Options- A. Cloud point
- B. Pour point
- C. Colour
- D. Freezing point Discuss
- 3. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
Options- A. 1
- B. 20
- C. 100
- D. 500 Discuss
- 4. Products drawn from the top to bottom of the crude oil distillation column has progressively increasing
Options- A. boiling points
- B. molecular weight
- C. C/H ratio
- D. all (a), (b) and (c) Discuss
- 5. Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
Options- A. 0.03
- B. 3
- C. 35
- D. 70 Discuss
- 6. The main reaction in reforming is the
Options- A. dehydrogenation of naphthenes.
- B. hydrogenation of naphthenes.
- C. hydrocracking of paraffins.
- D. saturation of olefins. Discuss
- 7. Thermofer catalytic cracking process is a __________ process.
Options- A. fixed bed
- B. moving bed
- C. fluidised bed
- D. non-catalytic Discuss
- 8. Which of the following has the minimum °API gravity of all?
Options- A. Diesel
- B. Kerosene
- C. Petrol
- D. Furnace oil Discuss
- 9. Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
Options- A. smoke point
- B. paraffins
- C. aromatics
- D. naphthenes Discuss
- 10. Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).
Options- A. 5
- B. 25
- C. 50
- D. 100 Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: freezing point
Correct Answer: Freezing point
Correct Answer: 20
Correct Answer: all (a), (b) and (c)
Correct Answer: 3
Correct Answer: dehydrogenation of naphthenes.
Correct Answer: non-catalytic
Correct Answer: Furnace oil
Correct Answer: paraffins
Correct Answer: 25
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