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Home⇒ Engineering⇒
Petroleum refinery engineering
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ The doctor's solution comprises of sodium plumbite in aqueous caustic soda [other wrong options] [Discuss in forum] alcohal water soda ash |
Q22 ⇒ Pick out the wrong statement. Aromatics have lower specific gravity than corresponding paraffins. [other wrong options] [Discuss in forum] Higher specific gravity of petroleum products means higher C/H ratio. Hydrocarbons of low specific gravity (e.g, paraffins) possess the maximum thermal energy per unit volume. Hydrocarbons of high specific gravity (eg, aromatics) possess the maximum thermal energy per unit weight. |
Q23 ⇒ Isomerisation converts the __________ tot-paraffins. paraffins [other wrong options] [Discuss in forum] olefins naphthenes none of these |
Q24 ⇒ The pressure (kg/cm2 ) and temperature (°C) maintained in electrical desalters for crude oil are respectively 1 and 200 [other wrong options] [Discuss in forum] 10 and 120 50 and 250 10 and 300 |
Q25 ⇒ A petroleum well is called 'dry', if it contains only natural gas. [other wrong options] [Discuss in forum] very little oil. no natural gas. all (a), (b) and (c). |
Q26 ⇒ Petrolatum is a mixture of microcrystalline wax in viscous hydrocarbon liquids. [other wrong options] [Discuss in forum] same as petroleum ether. petroleum coke. none of these. |
Q27 ⇒ Aniline point is the temperature at which equal volume of aniline & the test sample are completely miscible. [other wrong options] [Discuss in forum] equal weight of diesel & the aniline are completely miscible. equal weight of aniline & the test sample are completely miscible. aniline vaporises. |
Q28 ⇒ Butadiene is a/an di-olefin [other wrong options] [Discuss in forum] naphthene aromatic olefin |
Q29 ⇒ Pyrolysis of kerosene or natural gasoline is done to produce mainly the olefins and aromatics [other wrong options] [Discuss in forum] lighter paraffins stabilised gasoline diesel |
Q30 ⇒ Which of the following has the highest gum forming tendency in gosoline ? Diolefins [other wrong options] [Discuss in forum] Paraffins Aromatics Naphthenes |
Q31 ⇒ Pick out the wrong statement. All the alkylation processes use very high temperature (> 1000°C). [other wrong options] [Discuss in forum] Alkylation produces a larger iso-paraf-fin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin. Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts. Gasoline having an octane number of 90 can be produced by alkylation process. |
Q32 ⇒ Mercaptans are added to liquefied petroleum gas (LPG) to assist in checking its leakage from cylinder. [other wrong options] [Discuss in forum] reduce its cost. narrow down its explosion limit. increase its calorific value. |
Q33 ⇒ Which is an anticing compound ? Alcohals [other wrong options] [Discuss in forum] Amyl nitrate Mercaptans Pyridine |
Q34 ⇒ Carbon/hydrogen ratio (by weight) is maximum (out of following) for gasoline [other wrong options] [Discuss in forum] kerosene light gas oil heavy fuel oil |
Q35 ⇒ Most widely used solvent for dewaxing is methyl-ethyl-ketone (MEK) [other wrong options] [Discuss in forum] naphtha petroleum ether sodium plumbite |
Q36 ⇒ Petroleum is believed to have originated from __________ sources. both (a) and (b) [other wrong options] [Discuss in forum] vegetable animal neither (a) nor (b) |
Q37 ⇒ Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute. 30 to 80 [other wrong options] [Discuss in forum] 1 to 5 250 to 350 450 to 500 |
Q38 ⇒ With increase in density, the viscosity of petroleum products increases [other wrong options] [Discuss in forum] decreases remains same either (a) or (b) |
Q39 ⇒ Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). 25 [other wrong options] [Discuss in forum] 5 50 100 |
Q40 ⇒ The best method of determining sulphur in crude oil is by the __________ method. Bomb calorimeter [other wrong options] [Discuss in forum] Kjeldah Duma Junkar's calorimeter |
Or |