A. Can be separated out by distillation
B. Are not soluble in them
C. Crystallise out at low temperature
D. Decrease their viscosity
Related Mcqs:
- Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of ______________ kcal/kg?
A. 600-750
B. 250-350
C. 1000-1500
D. 2000-2500 - Which parameter is used for the grading of paraffin waxes ?
A. Specific gravity
B. Melting point
C. Viscosity
D. Penetration number - _____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium - Which of the following constituents present in petroleum is responsible for ash formation ?
A. Nitrogen compounds
B. Organometallic compounds
C. Sulphur compounds
D. Oxygen compounds - Which of the following is not a sulphur compound present in petroleum ?
A. Thiophenes
B. Mercaptans
C. Sulphones
D. Pyrroles - Which is almost absent in crude petroleum ?
A. Olefins
B. Mercaptans
C. Naphthenes
D. Cycloparaffins - Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?
A. Naphtha
B. Petrol
C. Kerosene
D. Heavy fuel oil - Increase in the specific gravity of petroleum products indicates________________?
A. Decrease in paraffin content
B. Increase in thermal energy per unit weight
C. Increase in aromatic content
D. Higher H/C ratio - Petroleum coke is used mainly in the __________________ ?
A. Discoloration of yellow glycerine
B. Sugar refining
C. Manufacture of carbon electrode
D. Blast furnace for reduction of iron ore - A source rock that is too immature to generate petroleum in its natural setting is known as__________?
A. Effective Source Rock
B. Potential Source Rock
C. Unconventional Source Rock
D. All of aboveSubmitted by: Sajjad Ali
