A. 10 and 120
B. 1 and 200
C. 50 and 250
D. 10 and 300
Related Mcqs:
- 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 - Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about ______________ kg/cm2?
A. 1.5
B. 3
C. 6
D. 12 - Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to__________________?
A. Increase the yield of light distillates
B. Suppress coke formation
C. Enhance the octane number of gasoline
D. Reduce gum content in gasoline - 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 - _____________ base crude oil is also called asphaltic crude?
A. Paraffinic
B. Naphthenic
C. Mixed
D. Aromatic - Electrical desalting of crude oil removes the _______________ impurities?
A. Oleophilic
B. Oleophobic
C. Both A. and B.
D. Neither A. nor B. - 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 - 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 - 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 - Crude oil produced by Indian oil fields are predominantly _______________ in nature?
A. Paraffinic
B. Naphthenic
C. Asphaltic
D. Mixed base
