Most commonly used crude heater before the fractionation tower in a refinery is the ______________ heater?

Related Mcqs:

1. 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...

2. 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...

3. Sour crude means the ________________ bearing crude?

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

4. 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...

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

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

6. 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...

7. 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...

8. Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about ________________ mm Hg absolute?

   A. 1 to 5 B. 30 to 80 C. 250 to 350 D. 450 to 500...

9. ____________ is not an important refinery process for upgrading the quality of lubricating oil ?

   A. Deoiling B. Solvent refining C. Clay treatment D. Hydro-treatment...

10. Which of the following processes in oil refinery does not employ „cracking‟?

    A. Coking B. Visbreaking C. Pyrolysis D. None of these...