Discussion
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- Question
Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.
Options- A. Smoking tendency of hydrocarbons increases in the order : paraffins ? isoparaffins ? naphthenes ? aromatics.
- B. Smoking tendency of paraffins increases with decrease in its molecular weight.
- C. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond.
- D. Smoking tendency of aromatics decreases with increase in its molecular weight.
- Correct Answer
- Smoking tendency of paraffins increases with decrease in its molecular weight.
- 1. Which is the most undesirable component in kerosene?
Options- A. Aromatics
- B. i-paraffins
- C. n-paraffins
- D. Naphthenes Discuss
- 2. Illuminating characteristics of kerosene is expressed by its
Options- A. smoke point
- B. aniline point
- C. luminosity number
- D. aromatic content Discuss
- 3. Flash point of an oil gives an idea of the
Options- A. nature of boiling point diagram of the system.
- B. amount of low boiling fraction present.
- C. explosion hazards.
- D. all (a), (b) and (c). Discuss
- 4. Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)?
Options- A. Diesel
- B. Gasoline
- C. Atmospheric gas oil
- D. Vacuum gas oil Discuss
- 5. The octane number of aviation gasoline may be
Options- A. 79
- B. 87
- C. 97
- D. >100 Discuss
- 6. Which of the following has the lowest viscosity (at a given temperature) of all?
Options- A. Naphtha
- B. Kerosene
- C. Diesel
- D. Lube oil Discuss
- 7. The coking process normally mostly used in Indian oil refineries is the __________ coking process.
Options- A. delayed
- B. flexi
- C. fluid
- D. contact Discuss
- 8. Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.
Options- A. black
- B. white
- C. red
- D. yellow Discuss
- 9. Catalyst used in catalytic reforming is
Options- A. platinum on alumina
- B. nickel
- C. iron
- D. aluminium chloride Discuss
- 10. __________ converts n-paraffins to i-paraffins.
Options- A. Alkylation
- B. Polymerisation
- C. Isomerisation
- D. none of these Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: Aromatics
Correct Answer: luminosity number
Correct Answer: all (a), (b) and (c).
Correct Answer: Gasoline
Correct Answer: >100
Correct Answer: Naphtha
Correct Answer: delayed
Correct Answer: white
Correct Answer: platinum on alumina
Correct Answer: Isomerisation
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