⟩ Gum formation in stored gasoline is mainly due to the A. alkylation of unsaturates. B. presence of sulphur. C. oxidation & polymerisation of unsaturates. D. higher aromatic content.
Option B
Option B
Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency? A. Paraffins B. Naphthenes C. Aromatics D. Iso-paraffins
Which of the following processes consumes hydrogen? A. Fluid catalytic cracking B. Visbreaking C. Propane deasphalting D. None of these
Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. A. 600-750 B. 250-350 C. 1000-1500 D. 2000-2500
Petroleum deposits are detected by the. A. oil seepage at the surface of the earth. B. measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth. C. age & nature of rocks inside the crust of the earth. D. all (a), (b) and (c)
Which of the following processes consumes hydrogen? A. Fluid catalytic cracking B. Visbreaking C. Propane deasphalting D. None of these
Which of the following has the highest viscosity of all (at a given temperature)? A. Naphtha B. Fuel oil C. Light diesel oil D. Petrol
Older crude petroleum A. is light and better. B. gives more distillates. C. gives less tar. D. all (a), (b) and (c).
The condesate obtained on compression of wet natural gas is termed as A. liquefied natural gasoline B. natural gasoline C. liquid natural gas D. none of these
Diesel index is defined as A. (°API) x (Aniline Point, °F)/100 B. (°API) x (Aniline Point, °C)/100 C. (°API) x (100)/Aniline Point, °F D. (°API) x (100)/Aniline Point, °C
Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene? A. Reforming B. Pyrolysis C. Alkylation D. Hydrocracking