A multigrade lubricating oil means an oil having high __________________?

Related Mcqs:

1. ________________ treatment is done for appreciable improvement in viscosity index of lubricating oil?

   A. Acid B. Solvent extraction C. Alkali D. Clay...

2. Paraffins are desirable in lubricating oil, as it has got high_____________________?

   A. Viscosity B. Viscosity index C. Smoke point D. Pour point...

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

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

4. Higher viscosity of lubricating oil usually signifies_______________________?

   A. Lower Reid vapour pressure B. Higher acid number C. Higher flash point and fire point D. Lower flash point and fire point...

5. Viscosity index of a lubricating oil_________________?

   A. Is the measure of its flash point B. Is the measure of variation of viscosity with temperature C. Should be low D. None of these...

6. Which of the following is not an important property of fuel oil/furnace oil ?

   A. Sulphur content B. Viscosity C. Aniline point D. Flash point...

7. 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...

8. 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...

9. 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...

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

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