Related Questions

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
A multigrade lubricating oil means an oil having high
A Viscosity index
B Viscosity
C Aniline point
D Flash point
Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture.
A Unbound
B Free
C Critical
D Bound
Medium viscosity lubricating oil can be most ideally pumped by a __________ pump.
A Vane
B Piston
C Centrifugal
D Plunger
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
Detergent is added as an additive in engine lubricating oil to
A Reduce deposit formation
B Keep contaminants in suspension
C Increase oxidation stability
D Prevent rusting
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
__________ is not an important refinery process for upgrading the quality of lubricating oil.
A Deoiling
B Solvent refinning
C Clay treatment
D Hydrotreatment
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

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