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- Question
H/C ratio (by weight) for the same number of carbon atoms is the highest in case of
Options- A. aromatics
- B. paraffins
- C. olefins
- D. naphthenes
- Correct Answer
- naphthenes
- 1. Octane number of n-heptane is assumed to be
Options- A. 100
- B. 0
- C. 70
- D. ? Discuss
- 2. CnH2n is the general formula for
Options- A. olefins
- B. naphthenes
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 3. Which of the following is the easiest to crack?
Options- A. Paraffins
- B. Olefins
- C. Naphthenes
- D. Aromatics Discuss
- 4. __________ treatment is done for appreciable improvement in viscosity index of lubricating oil.
Options- A. Acid
- B. Solvent extraction
- C. Alkali
- D. Clay Discuss
- 5. 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
- 6. High aniline point of a petrofuel (say diesel) indicates that
Options- A. it is highly aromatic in nature.
- B. it is highly paraffinic in nature.
- C. it has a very low diesel index.
- D. its ignition quality is very poor. Discuss
- 7. Pick out the wrong statement.
Options- A. Alkylation produces a larger iso-paraf-fin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin.
- B. Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts.
- C. All the alkylation processes use very high temperature (> 1000°C).
- D. Gasoline having an octane number of 90 can be produced by alkylation process. Discuss
- 8. Flash point of a liquid petroleum fuel gives an idea about its
Options- A. volatility.
- B. explosion hazards characteristics.
- C. nature of boiling point diagram.
- D. all (a), (b) and (c) Discuss
- 9. Platforming is a __________ process.
Options- A. moving bed
- B. fluidised bed
- C. non-regenerative & fixed bed
- D. regenerative Discuss
- 10. Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octance is chemically known as
Options- A. ?-methyl naphthalene.
- B. 2-2-4 tri methyl pentane.
- C. 1, 3 butadiene.
- D. tetra methyl ethylene. Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: 0
Correct Answer: both (a) and (b)
Correct Answer: Paraffins
Correct Answer: Solvent extraction
Correct Answer: all (a), (b) and (c).
Correct Answer: it is highly paraffinic in nature.
Correct Answer: All the alkylation processes use very high temperature (> 1000°C).
Correct Answer: all (a), (b) and (c)
Correct Answer: non-regenerative & fixed bed
Correct Answer: 2-2-4 tri methyl pentane.
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