Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher ______________ compared to the dry natural gas? A. Unsaturated hydrocarbon contentB. Calorific value C. Quantity of propane D. Quantity of butane
Which of the following has the minimum °API gravity of all ? A. Diesel B. Kerosene C. PetrolD. Furnace oil
Reforming converts_________________? A. Olefins into paraffinsB. Naphthenes into aromatics C. Naphthenes into olefins D. Naphthenes into paraffin
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 formationC. Coking D. Discoloration
The best method of determining sulphur in crude oil is by the _______________ method? A. Kjeldahl B. DumasC. Bomb calorimeter D. Junkers calorimeter
Which of the following reactions is undesirable in the production of catalytically reformed gasoline ? A. Dehydrogenation of NaphtheneB. Dehydrogenation of lower paraffins C. Dehydrocyclization of higher paraffins D. Isomerisation of paraffins
The most important property for a jet fuel is its________________? A. ViscosityB. Freezing point C. Calorific value D. Flash point
Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about _______________ mm Hg (absolute)? A. 5-10B. 30-80 C. 150-250 D. 350-400
Which of the following is not an important property of fuel oil/furnace oil ? A. Sulphur content B. ViscosityC. Aniline point D. Flash point
The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg? A. 1.2 B. 12C. 120 D. 700