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Chemical Engineering
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Petroleum Refinery Engineering
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Question
Name the hydrocarbon having the poorest oxidation stability.
Options
A. naphthene
B. olefin
C. paraffin
D. aromatics
Correct Answer
aromatics
Petroleum Refinery Engineering problems
Search Results
1. Mercaptans is represented as (where R and R' are alkyl groups)
Options
A. R-COOH
B. R-S-H
C. R-S-R
D. R-S-R'
Show Answer
Scratch Pad
Discuss
Correct Answer: R-S-H
2. Testing of the knocking characteristics of petrofuels is done in a __________ engine.
Options
A. Carnot
B. CFR (Co-operative fuel research)
C. Stirling
D. diesel
Show Answer
Scratch Pad
Discuss
Correct Answer: CFR (Co-operative fuel research)
3. Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to
Options
A. increase its smoke point.
B. improve its oxidation stability.
C. decrease the breathing loss.
D. none of these.
Show Answer
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Discuss
Correct Answer: improve its oxidation stability.
4. Petrolatum is
Options
A. same as petroleum ether.
B. petroleum coke.
C. a mixture of microcrystalline wax in viscous hydrocarbon liquids.
D. none of these.
Show Answer
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Discuss
Correct Answer: a mixture of microcrystalline wax in viscous hydrocarbon liquids.
5. Catalyst used in catalytic polymerisation which produces polymer gasoline is
Options
A. H
2
SO
4
B. H
3
PO
4
C. both (a) and (b)
D. AlCl
3
Show Answer
Scratch Pad
Discuss
Correct Answer: both (a) and (b)
6. Glycol added to petrol acts as a/an __________ agent.
Options
A. anti-knocking
B. anti-icing
C. anti-gum forming
D. dewaxing
Show Answer
Scratch Pad
Discuss
Correct Answer: anti-icing
7. Electrical desalting of crude oil removes the __________ impurities.
Options
A. oleophilic
B. oleophobic
C. both (a) and (b)
D. neither (a) nor (b)
Show Answer
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Discuss
Correct Answer: oleophobic
8. Deoiling of wax is done by its
Options
A. heating
B. cooling
C. solvent extraction
D. both(b)&(c)
Show Answer
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Discuss
Correct Answer: both(b)&(c)
9. During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.
Options
A. decreases
B. increases
C. remains unchanged
D. decreases linearly
Show Answer
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Discuss
Correct Answer: increases
10. Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its
Options
A. molecular weight
B. aromatics content
C. both a & b
D. neither a nor b
Show Answer
Scratch Pad
Discuss
Correct Answer: both a & b
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