Which is almost absent in crude petroleum ?

Related Mcqs:

1. Paraffin base crude oil as compared to asphalt base crude gives___________________?

   A. Higher yield of straight run gasoline
   B. Higher octane number gasoline
   C. Lower viscosity index lube oil
   D. Poorer yield of lube oil

2. Sour crude means the ________________ bearing crude?

   A. Asphalt
   B. Sulphur compounds
   C. Wax
   D. Nitrogen compounds

3. 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?

   A. Decreases
   B. Increases
   C. Remains unchanged
   D. Decreases linearly

4. _____________ base crude oil is also called asphaltic crude?

   A. Paraffinic
   B. Naphthenic
   C. Mixed
   D. Aromatic

5. Crude oils containing more than ____________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ‘salty crude’ ?

   A. 1
   B. 5
   C. 15
   D. 25

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

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

7. _____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?

   A. Magnesium
   B. Potassium
   C. Calcium
   D. Sodium

8. Molecular weight of crude petroleum may be around________________?

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

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

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

10. Crude petroleum oil is a _______________ fuel?

    A. Primary
    B. Fossil
    C. Both A. & B.
    D. Secondary