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Petroleum Refinery Engineering
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Question
Which one is used to determine the colour of petroleum products?
Options
A. Colour comparator
B. Saybolt chromometer
C. Cleveland apparatus
D. None of these
Correct Answer
Colour comparator
Petroleum Refinery Engineering problems
Search Results
1. A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.
Options
A. 8
B. 18
C. 28
D. 35
Show Answer
Scratch Pad
Discuss
Correct Answer: 8
2. Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm
2
is maintained during cracking mainly to
Options
A. increase the yield of light distillates.
B. suppress coke formation.
C. enhance the octane number of gasoline.
D. reduce gum content in gasoline.
Show Answer
Scratch Pad
Discuss
Correct Answer: suppress coke formation.
3. Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic
Options
A. cracking
B. polymerisation
C. reforming
D. isomerisation
Show Answer
Scratch Pad
Discuss
Correct Answer: reforming
4. Molecular weight of crude petroleum may be around
Options
A. 50
B. 250
C. 1500
D. 5000
Show Answer
Scratch Pad
Discuss
Correct Answer: 1500
5. Which of the following categories of gasoline has the highest lead susceptibility?
Options
A. Straight run gasoline
B. Platinum reformed gasoline
C. Catalytical cracked gasoline
D. Polymer gasoline
Show Answer
Scratch Pad
Discuss
Correct Answer: Straight run gasoline
6. Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
Options
A. gives higher yield of petrol.
B. lower octane number of petrol.
C. higher sulphur content in the product.
D. higher gum forming material in petrol.
Show Answer
Scratch Pad
Discuss
Correct Answer: gives higher yield of petrol.
7. The proper arrangement of the petroleum fractions in order of their boiling points is
Options
A. lubricating oil > diesel > petrol > LPG
B. lubricating oil > petrol > diesel > LPG
C. petrol > lubricating oil > diesel > LPG
D. petrol > diesel > LPG > lubricating oil
Show Answer
Scratch Pad
Discuss
Correct Answer: lubricating oil > diesel > petrol > LPG
8. Antioxidants are added in petrol to
Options
A. impart colour to it, for easy identification.
B. minimise the gum formation.
C. prevent icing of the carburettor.
D. prevent the lead build up in engines.
Show Answer
Scratch Pad
Discuss
Correct Answer: minimise the gum formation.
9. The average boiling point of aviation turbine fuel is closest to that of
Options
A. lubricating oils
B. LPG
C. diesel
D. Kerosene
Show Answer
Scratch Pad
Discuss
Correct Answer: Kerosene
10. Choose the correct statement regarding thermal cracking.
Options
A. Moderate changes in operating temperature does not change the depth of cracking.
B. Increased residence time results in the decreased severity of cracking.
C. At low pressure, the yield of lighter hydrocarbons are more.
D. Greater depth of cracking gives lower octane number gasoline.
Show Answer
Scratch Pad
Discuss
Correct Answer: Greater depth of cracking gives lower octane number gasoline.
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