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- Question
A multigrade lubricating oil means an oil having high
Options- A. viscosity index
- B. viscosity
- C. aniline point
- D. flash point
- Correct Answer
- viscosity index
- 1. Water content in the crude oil as it comes out of oil well may be upto __________ percent.
Options- A. 2
- B. 5
- C. 10
- D. 25 Discuss
- 2. Pick out the wrong statement.
Options- A. A pale color of petroleum product indicates lower viscosity.
- B. Color of petroleum products indicates the degree of refinement.
- C. Lighter petroleum distillates are lighter in color than the heavier residual oils.
- D. Flouroscene of oils helps to detect its adulteration. Discuss
- 3. Waxy crudes are treated with chemical additives mainly to
Options- A. depress its pour point
- B. dissolve wax
- C. precipitate wax
- D. remove wax Discuss
- 4. Which is an anticing compound?
Options- A. Amyl nitrate
- B. Alcohals
- C. Mercaptans
- D. Pyridine Discuss
- 5. Concentration of H2SO4 catalyst in alkyla-tion is kept between 90-98%, because H2SO4 having concentration
Options- A. less than 90% promotes polymerisation.
- B. more than 98% promotes cracking.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 6. Reforming converts
Options- A. olefins into paraffins
- B. naphthenes into aromatics
- C. naphthenes into olefins.
- D. naphthenes into paraffin. Discuss
- 7. Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.
Options- A. 1
- B. 50
- C. 5000
- D. 10000 Discuss
- 8. Reforming
Options- A. uses naphtha as feedstock.
- B. does not much affect the molecular weight of the feed.
- C. improves the quality & yield of gasoline.
- D. all (a), (b) and (c). Discuss
- 9. __________ treatment is done for appreciable improvement in viscosity index of lubricating oil.
Options- A. Acid
- B. Solvent extraction
- C. Alkali
- D. Clay Discuss
- 10. Which of the following is the easiest to crack?
Options- A. Paraffins
- B. Olefins
- C. Naphthenes
- D. Aromatics Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: 25
Correct Answer: A pale color of petroleum product indicates lower viscosity.
Correct Answer: depress its pour point
Correct Answer: Alcohals
Correct Answer: both (a) and (b).
Correct Answer: naphthenes into aromatics
Correct Answer: 50
Correct Answer: all (a), (b) and (c).
Correct Answer: Solvent extraction
Correct Answer: Paraffins
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