⟩ Stabilisation of gasoline (petrol) means A. removal of dissolved gases from it. B. increasing its oxidation stability. C. improving its lead susceptibility. D. increasing its vapour pressure.
Option A
Option A
Good quality kerosene should have A. low smoke point. B. high smoke point. C. high aromatics content. D. low paraffins content.
Which of the following reactions is undesirable in the production of catalytically reformed gasoline? A. Dehydrogenation of naphthene B. Dehydrogenation of lower paraffins C. Dehydrocyclisation of higher paraffins D. Isomerisation of paraffins
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
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic A. cracking B. polymerisation C. reforming D. isomerisation
The most suitable solvent for deasphalting vacuum residue is A. propane B. methyl ethyl ketone C. doctor's solution D. methanol amine
Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to A. increase its smoke point. B. improve its oxidation stability. C. decrease the breathing loss. D. none of these.
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). A. 5 B. 25 C. 50 D. 100
Thermofer catalytic cracking process is a __________ process. A. fixed bed B. moving bed C. fluidised bed D. non-catalytic
Cetane number of a diesel fuel is the measure of its A. ignition delay B. smoke point C. viscosity D. oxidation stability
Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of A. thermal cracking B. gum formation C. coking D. discoloration