Related Questions

Pick out the undesirable property for a solvent meant for dewaxing of lube oil.
A Complete miscibility with oil
B High solubility of wax in the solvent
C Both A & B
D Neither A nor B
Which of the following can be most effectively used for clarification of lube oil and printing ink?
A Sparkler filter
B Precoat filter
C Disc-bowl centrifuge
D Sharpies supercentrifuge
Which is more viscous lube oil?
A SEA 30
B SAE 50
C SAE 70
D SAE 80
Pick out the additive property of a lube oil out of following.
A °API gravity
B Specific gravity
C Viscosity
D Flashpoint
Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0
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
A jar contains a mixture of oil and water in the ratio 22 :3 . 50 litres of the mixture was taken out and 25 litres of water was added to it. If water was 34% in the resultant mixture, what was the initial quantity of the mixture (in litres ) in the jar?
A 175
B 150
C 75
D 125
Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the
A Elimination of solvent drying facility
B Higher nitration temperature
C Lower solvent dilution ratio
D All of the above
Solvent used for extraction of oil is
A Hexane
B Methyl ethyl ketone
C Furfurol
D None of these

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