Petroleum Refinery Engineering Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is Round about 100 More than 100 Between 50 and 100 Less than 25 Round about 100 More than 100 Between 50 and 100 Less than 25 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering 'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts. Distillation Desulphurisation Steam reforming None of these Distillation Desulphurisation Steam reforming None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Ethyl mercaptan is a/an __________ compound. Nitrogen None of these Sulphur Oxygen Nitrogen None of these Sulphur Oxygen ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering 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. Decreases Decreases linearly Remains unchanged Increases Decreases Decreases linearly Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the undesirable property for a solvent meant for dewaxing of lube oil. High solubility of wax in the solvent Both A & B Neither A nor B Complete miscibility with oil High solubility of wax in the solvent Both A & B Neither A nor B Complete miscibility with oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering 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 Light ends Heavy distillates Residues Intermediate distillates Light ends Heavy distillates Residues Intermediate distillates ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS