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
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
A Extracting solvent is cheaply & abundantly available
B One of the liquid components is heat sensitive
C Viscosity of liquid components is very high
D One of the liquid components has very high affinity towards the solvent
Extraction of pencillin employs a __________ extraction coloumn.
A Centrifugal
B Packed
C Plate
D None of these
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
A Increases
B Decreases
C Remains unaffected
D Increases Linearly
Drum X is 1/2 full of oil and drum Y, which has twice the capacity of drum X, is 2/3 full of oil. If all of the oil in drum X is poured into drum Y, then drum Y will be filled to what fraction of its capacity?
A 3/4
B 5/6
C 11/12
D 7/6
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
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
A Poor oxidation stability and high gum forming tendency
B Greater tendency of decomposition at elevated temperature
C Hydrolysis tendency in presence of water
D All of the above
In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction
A Heavy distillates
B Intermediate distillates
C Light ends
D Residues
What is defined as the reduction of the value of certain natural resources such as mines, oil, timber, quarries, etc. due to the gradual extraction of its contents?
A Depletion
B Inflation
C Depreciation
D Deflation
Solvent used for extraction of oil is
A Hexane
B Methyl ethyl ketone
C Furfurol
D None of these

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