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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. |
Q41 ⇒ Which parameter is used for the grading of paraffin waxes ? Viscosity [other wrong options] [Discuss in forum] Specific gravity Melting point Penetration number |
Q42 ⇒ Road grade bitumen is produced from vacuum residue by its steam reforming [other wrong options] [Discuss in forum] aeration pyrolysis hydrogenation |
Q43 ⇒ Clay treatment is used to remove wax from lube oil. [other wrong options] [Discuss in forum] salt from the crude oil. colour & dissolved gases from cracked gasoline. none of these. |
Q44 ⇒ Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octance is chemically known as 2-2-4 tri methyl pentane. [other wrong options] [Discuss in forum] α-methyl naphthalene. 1, 3 butadiene. tetra methyl ethylene. |
Q45 ⇒ Waxes present in petroleum products crystallise out at low temperature. [other wrong options] [Discuss in forum] can be separated out by distillation. are not soluble in them. decrease their viscosity. |
Q46 ⇒ Clay treatment of petroleum products all (a), (b) & (c). [other wrong options] [Discuss in forum] decolorises & stabilises cracked gasoline. desulphurise straight run gasoline & kerosene. adsorb arsenic from feedstock to catalytic reforming. |
Q47 ⇒ Products drawn from the top to bottom of the crude oil distillation column has progressively increasing all (a), (b) and (c) [other wrong options] [Discuss in forum] boiling points molecular weight C/H ratio |
Q48 ⇒ __________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation. Magnesium [other wrong options] [Discuss in forum] Potassium Calcium Sodium |
Q49 ⇒ Aniline point of the diesel is a measure of its __________ content. paraffin [other wrong options] [Discuss in forum] aromatic olefin naphthene |
Q50 ⇒ Which of the following reactions is undesirable in the production of catalytically reformed gasoline ? Dehydrogenation of lower paraffins [other wrong options] [Discuss in forum] Dehydrogenation of naphthene Dehydrocyclisation of higher paraffins Isomerisation of paraffins |
Q51 ⇒ Which one is preferred for aircraft engine ? High viscosity index lube oil. [other wrong options] [Discuss in forum] Low viscosity index lube oil. High freezing point aviation fuel. None of these. |
Q52 ⇒ The main reaction in reforming is the dehydrogenation of naphthenes. [other wrong options] [Discuss in forum] hydrogenation of naphthenes. hydrocracking of paraffins. saturation of olefins. |
Q53 ⇒ Which of the following processes consumes hydrogen ? Fluid catalytic cracking [other wrong options] [Discuss in forum] Visbreaking Propane deasphalting None of these |
Q54 ⇒ Pick out the wrong statement. An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index. [other wrong options] [Discuss in forum] Pensky-Marten apparatus is used for determining flash points above 50°C. Characterisation factor of paraffinic crude oil is more than 12. Abel apparatus is used for determining flash points below 50°C. |
Q55 ⇒ Molecular weight of crude oil is in the range of 230-250 [other wrong options] [Discuss in forum] 100-120 450-550 600-850 |
Q56 ⇒ Aniline point of high speed diesel may be about __________ °C. 70 [other wrong options] [Discuss in forum] 35 105 150 |
Q57 ⇒ Naphtha yield in straight run distillation of crude oil may be about __________ percent. 6 [other wrong options] [Discuss in forum] 2 12 18 |
Q58 ⇒ Which of the following is not an important property of fuel oil/furnace oil ? Aniline point [other wrong options] [Discuss in forum] Sulphur content Viscosity Flash point |
Q59 ⇒ Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO2 extraction (Edeleanu process), its smoke point may become __________ mm. 25 [other wrong options] [Discuss in forum] 5 10 100 |
Q60 ⇒ Choose the correct statement. Coking tendency increases with increasing molecular weight. [other wrong options] [Discuss in forum] Coking tendency decreases with increasing molecular weight. Higher pressure enhances coke formation. Coking is an exothermic reaction. |
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