A. Propane & phenol-cresol mixture
B. Methyl ethyl ketone & glycol
C. Phenol & furfural
D. Propane & liquid sulphur dioxide
Related Mcqs:
- 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. and B.
D. Neither A. nor B. - Pick out the additive property of lube oil out of following ?
A. °API gravity
B. Specific gravity
C. Viscosity
D. Flashpoint - Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl isobutyl 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 A., B. & C. - During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?
A. Decreases
B. Increases
C. Remains unchanged
D. Decreases linearly - Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?
A. Naphtha
B. Lubricating oils
C. Wax
D. Cracking feedstock - Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?
A. Propane
B. Diethylene glycol
C. Aqueous solution (10% water) of diethylene glycol
D. Methyl ethyl ketone (MEK) - ‘Solvent naphtha’ used mostly as a solvent in paints and perfumery is produced by the _________________ of virgin naphtha into small boiling range cuts?
A. Steam reforming
B. Distillation
C. Desulphurisation
D. None of these - The conductivity of crude oil-water mixture depends on the__________________?
A. pH value
B. Water percentage
C. Temperature
D. All A., B. and C. - Crude oil is transported inland from oil field to refineries, mainly by the _____________________?
A. Road tankers
B. Rail tankers
C. Underground pipelines
D. None of these - A multigrade lubricating oil means an oil having high __________________?
A. Viscosity index
B. Viscosity
C. Aniline point
D. Flash point
