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

Related Mcqs:

Molecular weight of crude petroleum may be around________________?

A. 50 B. 250 C. 1500 D. 5000...

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...

Feedstock for polymerisation is__________________?

A. Naphtha B. Cracked gases rich in C2 & C4 olefins C. Low boiling aromatics D. None of these...

Boiling range of motor gasoline is an indication of the ___________________?

A. Case of starting B. Rate of acceleration C. Vapour locking tendency D. All A., B. and C....

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

A. Reduced crude B. Heavy ends C. Asphalt D. Residuum...