Related Questions

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
Medium viscosity lubricating oil can be most ideally pumped by a __________ pump.
A Vane
B Piston
C Centrifugal
D Plunger
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
After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?
A 8
B 8.50
C 9
D None of these
Higher vicosity index of a lubricating oil denotes
A Less changes in fluidity of oil with temperature
B Substantially high change in fluidity of oil with temperature
C Its unsuitability under varying temperature conditions
D None of these
A multigrade lubricating oil means an oil having high
A Viscosity index
B Viscosity
C Aniline point
D Flash point
__________ is not an important refinery process for upgrading the quality of lubricating oil.
A Deoiling
B Solvent refinning
C Clay treatment
D Hydrotreatment
The import of crude oil and petroleum done from national oil companies of producer countries, which have a net exportable surplus of oil is by
A term contracts
B term tenders
C monthly tenders
D All the above
With increase in temperature, the thermal conductivity of fresh lubricating oil
A Increases
B Decreases
C Remains unchanged
D May increase or decrease; depends on its composition
Paraffins are desirable in lubricating oil, as it has got high
A Viscosity
B Viscosity index
C Smoke point
D Pour point

Next steps