Bottom product of atmospheric pressure crude oil distillation column is termed as________________?

Related Mcqs:

1. Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ___________________?

   A. Boiling points B. Molecular weight C. C/H ratio D. All A., B. and C....

2. 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...

3. 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...

4. The terminology used for the bottom most product from the vacuum crude distillation unit is______________?

   A. Residual crude B. Residuum C. Reduced crude D. Petrolatum...

5. In the atmospheric pressure crude distillation, the content of _____________ from lighter fraction to heavier ones?

   A. Sulphur increases B. Sulphur decreases C. Nitrogen decreases D. None of these...

6. 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...

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

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

8. Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)?

   A. 5-10 B. 30-80 C. 150-250 D. 350-400...

9. The most widely used crude topping column in refineries is the ______________ column?

   A. Bubble-cap B. Packed bed C. Fluidised bed D. Perforated plate...

10. Crude oil is subjected to vacuum distillation in the last stage, because_________________?

    A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose B. Lighter/low boiling products are prone to thermal decomposition C. High purity products can be obtained thereby D. None of these...