Petroleum Refinery Engineering Questions

• Diesel index.(an alternative index for expressing the quality of diesel) is
• __________ determination is not a very significant and important test for gasoline.
• In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.
• Which of the following tests is not done for transformer oil?
• Solvent used in duo-sol extraction for lube oil upgradation is a mixture of
• Which of the following is used as a catalyst in fluidised bed catalytic cracking?
• Which of the following constituents present in petroleum is responsible for ash formation?
• Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
• Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.
• The main use of heavy gas oil produced by the vacuum distillation unit is as a
• Solvent used in the deasphalting process is
• Flash point of motor gasoline may be around __________ °C.
• The colour of gasoline is an indication of its
• In petroleum refining, the process used for conversion of hydrocarbons to aromatics is
• Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
• Diesel used in naval applications has a minimum cetane number of
• Visbreaking process is used mainly for making
• Octane number of gasoline is a measure of its
• Mercaptans are
• Casing head gasoline is the liquid