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?

Related Mcqs:

1. Hydrogen percentage (by weight) in crude petroleum may be about __________________?

   A. 5
   B. 15
   C. 25
   D. 35

2. 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

3. Sulphur content in lighter and heavier petroleum products is generally determined respectively by _______________?

   A. Lamp method and bomb method
   B. Bomb method and lamp method
   C. Bomb method and quartz tube method
   D. Quartz tube method and lamp method

4. Tanks used for the storage of petroleum products (which are inflammable) should be painted with a ______________ paint?

   A. Black
   B. White
   C. Red
   D. Yellow

5. Carbon percentage (by weight) in crude petroleum may be about_________________?

   A. 65
   B. 75
   C. 85
   D. 95

6. Molecular weight of crude petroleum may be around________________?

   A. 50
   B. 250
   C. 1500
   D. 5000

7. Which of the following has maximum hydrogen/carbon ratio (by weight) ?

   A. Naphtha
   B. Gasoline
   C. Diesel
   D. Fuel oil

8. Carbon/hydrogen ratio (by weight) is maximum (out of following) for_________________?

   A. Gasoline
   B. Kerosene
   C. Light gas oil
   D. Heavy fuel oil

9. 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

10. 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