Petroleum Refinery Engineering Which of the following additives improves the cetane number of diesel? Napthenic acid Ethyl mercaptan Tetra ethyl lead Amyl nitrate Napthenic acid Ethyl mercaptan Tetra ethyl lead Amyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Decrease their viscosity Can be separated out by distillation Crystallise out at low temperature Are not soluble in them Decrease their viscosity Can be separated out by distillation Crystallise out at low temperature Are not soluble in them ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrocracking employs High temperature and low pressure High pressure and low temperature High pressure & temperature Low pressure & temperature High temperature and low pressure High pressure and low temperature High pressure & temperature Low pressure & temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Viscosity index of a lubricating oil Should be low None of these Is the measure of its flash point Is the measure of variation of viscosity with temperature Should be low None of these Is the measure of its flash point Is the measure of variation of viscosity with temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke volatility index is equal to smoke point plus 0.84 x (% distilled at 204°C) 0.42 x(% distilled at 204°C) 5 mm 10 mm. approximately 0.84 x (% distilled at 204°C) 0.42 x(% distilled at 204°C) 5 mm 10 mm. approximately ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Naphthenic acid is a/an __________ compound. Oxygen Nitrogen Sulphur None of these Oxygen Nitrogen Sulphur None of these ANSWER DOWNLOAD EXAMIANS APP
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