Viscosity index of a lubricating oil – McqOptions

MCQOPTIONS

1.	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.
Answer» C. should be low.

Discussion

No Comment Found

Related MCQs

Octane number of -heptane is assumed to be
Concentration of HSO catalyst in alkyla-tion is kept between 90-98%, because HSO having concentration
The pressure (kg/cm ) and temperature (°C) maintained in electrical desalters for crude oil are respectively
Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm is maintained during cracking mainly to
Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO extraction (Edeleanu process), its smoke point may become __________ mm.
Which of the following has the maximum °API gravity of all?
Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about __________ kg/cm .
Which of the following has the minimum °API gravity of all?
Aniline point of high speed diesel may be about __________ °C.
A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below :The vapour pressure of the fuel oil will be __________ mm Hg.