Petroleum Refinery Engineering Quiz 2

Diesel used in naval applications has a minimum cetane number of _____?

Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to_________?

Crude oils containing more than _____ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ?salty crude? ?

Flash point of an oil gives an idea of the_____?

DLS stands For_______?

H/C ratio (by weight) for the same number of carbon atoms is the highest in case of______?

Extractor temperature is maintained at -20?C in Edeleanu process to reduce the _______ of kerosene?

Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than _________ mg/kg of kerosene?

Diesel index is defined as__________?

Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely miscible. It means that the aniline point of the diesel is ________ the room temperature?

Fuel oil is subjected to visbreaking to reduce its________?

Extractor temperature is maintained at -20?C in Edeleanu process to reduce the __________ of kerosene?

Good quality kerosene should have___________?

Clay treatment of petroleum products ___________?

For gasoline, the flash point (<50?C) is determined by the________?

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 ______?

Choose the correct statement regarding thermal cracking ?

Deoiling of wax is done by its __________?

Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?

Electrical desalting of crude oil removes the ________ impurities?

Flash point of atmospheric distillation residue is determined by _______ apparatus?

Choose the correct statement ?

Crude topping column operates at _________ pressure?

Diesel index (an alternative index for expressing the quality of diesel) is________?

Glycol added to petrol acts as a/an _________ agent ?

Complete removal of ______ from gasoline is done by Unisol process using caustic soda and methyl alcohol?

Crude oil produced by Indian oil fields are predominantly ________ in nature?

Ethyl mercaptan is a/an _____ compound?

Crude oil is pumped by a ________ pump?

High aniline point of diesel indicates that, it _______?

Crude oil is subjected to vacuum distillation in the last stage, because__________?

Crude petroleum oil is a ________ fuel?

Crude oil is transported inland from oil field to refineries, mainly by the _______?

Choose the correct statement?

Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight?

High aniline point of a petrofuel (say diesel) indicates that _________?

Feedstock for polymerisation is___________?

Furfural solvent extraction is used for upgrading (by dissolving aromatics) ?

Feed for reforming is generally_____?

Flash point of diesel/kerosene (>50?C) is determined by the________?

Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about _________ ppm?

Clay treatment is used to remove _____ ?

Flash point of motor gasoline may be around _______ ?C?

Gum formation in stored gasoline is mainly due to the ______?

Deoiling is the process of removal of oil from wax. It is done by the ________ process?

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?

CnH2n is the general formula for________?

Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?

Flash point of an oil is determined by the _______?

Cracking is_____?