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?

Related Mcqs:

1. Electrical desalting of crude oil removes the _______________ impurities?

   A. Oleophilic
   B. Oleophobic
   C. Both A. and B.
   D. Neither A. nor B.

2. The conductivity of crude oil-water mixture depends on the__________________?

   A. pH value
   B. Water percentage
   C. Temperature
   D. All A., B. and C.

3. 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

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

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

5. Water content in the crude oil as it comes out of oil well may be upto ______________ percent?

   A. 2
   B. 5
   C. 10
   D. 25

6. The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively__________________?

   A. 10 and 120
   B. 1 and 200
   C. 50 and 250
   D. 10 and 300

7. Operating condition in the electrical dehydrators for crude oil is about____________________?

   A. 6.5 kgf/Cm2 & 95°C
   B. 1 atm. & 110 °C
   C. 20 kgf/cm2 & 110°C
   D. 50 atm. and 150°C

8. Sour crude means the ________________ bearing crude?

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

9. Crude oil is transported inland from oil field to refineries, mainly by the _____________________?

   A. Road tankers
   B. Rail tankers
   C. Underground pipelines
   D. None of these

10. Crude oil produced by Indian oil fields are predominantly _______________ in nature?

    A. Paraffinic
    B. Naphthenic
    C. Asphaltic
    D. Mixed base