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- Question
Which one is preferred for aircraft engine?
Options- A. High viscosity index lube oil.
- B. Low viscosity index lube oil.
- C. High freezing point aviation fuel.
- D. None of these.
- Correct Answer
- High viscosity index lube oil.
- 1. Molecular weight of crude oil is in the range of
Options- A. 100-120
- B. 230-250
- C. 450-550
- D. 600-850 Discuss
- 2. In sweetening process, solutizer agent used with caustic alkali is
Options- A. potassium isobutyrate
- B. sodium plumbite
- C. methanol
- D. phenol Discuss
- 3. In case of liquid petrofuels, momentary combustion is observed at its
Options- A. flash point.
- B. preheating temperature corresponding to viscosity of 25 centistokes.
- C. flame temperature.
- D. fire point. Discuss
- 4. Presence of sulphur in gasoline
Options- A. leads to corrosion.
- B. increases lead susceptibility.
- C. decreases gum formation.
- D. helps during stabilisation. Discuss
- 5. Alkylation
Options- A. causes olefins to combine with each other.
- B. causes olefins to combine with iso-paraffins.
- C. converts iso-paraffin into olefin.
- D. converts olefin into paraffin. Discuss
- 6. Pick out the correct statement about catalytic polymerisation.
Options- A. H2SO4 polymerisation process gives gasoline rich in unsaturates.
- B. In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive.
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 7. In solutizer sweetening process, solutizer solution used is
Options- A. methanol in Unisol process.
- B. naphthenic acid in Mercapsol process.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 8. Solvent used in Edeleanu process is
Options- A. furfural
- B. propane
- C. liquid SO2
- D. phenol Discuss
- 9. Mercapsol and Unisol processes are meant for the
Options- A. dearomatisation of kerosene
- B. removal of mercaptans
- C. dewaxing
- D. decoloration Discuss
- 10. Name the endothermic reaction out of the following:
Options- A. Catalytic cracking.
- B. Hydrocracking.
- C. Dehydrogeneration of naphthene to produce aromatic.
- D. Catalytic polymerisation. Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: 230-250
Correct Answer: potassium isobutyrate
Correct Answer: flash point.
Correct Answer: leads to corrosion.
Correct Answer: causes olefins to combine with iso-paraffins.
Correct Answer: In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive.
Correct Answer: both (a) and (b).
Correct Answer: liquid SO2
Correct Answer: removal of mercaptans
Correct Answer: Dehydrogeneration of naphthene to produce aromatic.
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