A. pH of the soil
B. Bacterial action
C. Heat
D. Pressure
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 - Petroleum is believed to have originated from _______________ sources?
A. Vegetable
B. Animal
C. Both A. and B.
D. Neither A. nor B. - 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 rock favors petroleum formation?
A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. None of theseSubmitted by: Sajjad Ali Tagar
- Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil ?
A. Modern theory
B. Carbide theory
C. Engler theory
D. All A., B. and C. - 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 - Which of the following processes is used for the production of petroleum coke ?
A. Stabilisation
B. Visbreaking
C. Cracking
D. Reforming - Which of the following petroleum products contain minimum sulphur ?
A. Naphtha
B. Kerosene
C. LSHS
D. Furnace oil - Which of the following is not a sulphur compound present in petroleum ?
A. Thiophenes
B. Mercaptans
C. Sulphones
D. Pyrroles - Which of the following is used as a solvent in deasphalting of petroleum products ?
A. Furfural
B. Propane
C. Methyl ethyl ketone
D. Liquid sulphur dioxide
