Description : Which of the following processes is used for the production of petroleum coke? (A) Stabilisation (B) Visbreaking (C) Cracking (D) Reforming
Last Answer : (C) Cracking
Description : Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)? (A) Diesel (B) Gasoline (C) Atmospheric gas oil (D) Vacuum gas oil
Last Answer : (C) Atmospheric gas oil
Description : Sweetening of petroleum product means the removal of (A) Sulphur & its compounds (B) Water (C) Organic impurities (D) Wax
Last Answer : (A) Sulphur & its compounds
Description : Stabilisation of gasoline (petrol) means (A) Removal of dissolved gases from it (B) Increasing its oxidation stability (C) Improving its lead susceptibility (D) Increasing its vapour pressure
Last Answer : (A) Removal of dissolved gases from it
Description : Fuel oil is subjected to visbreaking to reduce its (A) Pour point (B) Viscosity (C) Pressure drop on pumping (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene
Last Answer : (C) Fuel oil
Description : Which of the following processes in oil refinery does not employ ‘cracking’? (A) Coking (B) Visbreaking (C) Pyrolysis (D) None of these
Last Answer : (D) None of these
Description : Visbreaking (A) Uses natural gas as feed (B) Is carried out at atmospheric pressure (C) Produces fuel oil of lower viscosity (D) Produces gasoline only
Last Answer : (C) Produces fuel oil of lower viscosity
Description : Mechanism of moisture removal in case of freeze drying of food stuff is by (A) Evaporation (B) Sublimation (C) Dehydration (D) Adsorption
Last Answer : (B) Sublimation
Description : In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and ... the fraction (A) Heavy distillates (B) Intermediate distillates (C) Light ends (D) Residues
Last Answer : (A) Heavy distillates
Description : Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C. (A) 80-170 (B) 200-300 (C) 250-270
Last Answer : (A) 80-170
Description : Which of the following fractions of coal-tar distillation contains naphthalene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil
Last Answer : Middle oil
Description : Which of the following fractions of coal-tar distillation contains benzene? (a) Light oil (b) Middle oil (c) Heavy oil (d) Anthracene oil
Last Answer : Light oil
Description : Which is NOT a correct consequence of surgical removal of portions of these glands? A) adrenal cortex--bronzing of skin, no glucose at stress, dehydration and death B) thymus--decrease ... change in secondary sex characteristics E) adult thyroid--low pulse rate and body temperature and lethargy
Last Answer : B) thymus--decrease in sex drive and changes in secondary sexual characteristics
Description : Petroleum coke is commercially produced by the __________ process. (A) Hydrocracking (B) Visbreaking (C) Fluid catalytic cracking (D) Delayed coking
Last Answer : (D) Delayed coking
Description : Which of the following processes consumes hydrogen? (A) Fluid catalytic cracking (B) Visbreaking (C) Propane deasphalting (D) None of these
Last Answer : (A) Fluid catalytic cracking
Description : Pick out the wrong statement. (A) Higher temperature is employed in visbreaking than in thermal cracking (B) Pyrolysis is a mild thermal cracking process (C) Lead susceptibility of ... Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process
Last Answer : (A) Higher temperature is employed in visbreaking than in thermal cracking (B) Pyrolysis is a mild thermal cracking process
Description : The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the (A) Bacterial stability factor (B) Relative stability (C) Biological oxygen demand (BOD) (D) Oxygen ion concentration
Last Answer : (B) Relative stability
Description : Doctor's solution used for sweetening of petroleum products is (A) Sodium plumbite (B) Sodium sulphite (C) Sodium thiosulphate (D) Lead sulphate
Last Answer : (A) Sodium plumbite
Description : Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : In Hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen (A) Enhances the desulphurisation process (B) Minimises coke formation (C) Both (A) and (B) (D) Neither (A) nor (B
Last Answer : (C) Both (A) and (B)
Description : In solutizer sweetening process, solutizer solution used is (A) Methanol in Unisol process (B) Naphthenic acid in Mercapsol process (C) Both (A) and (B)
Description : In sweetening process, solutizer agent used with caustic alkali is (A) Potassium isobutyrate (B) Sodium plumbite (C) Methanol (D) Phenol
Last Answer : (A) Potassium isobutyrate
Description : Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ... B) Increasing the effectiveness (C) Improving the strength & heat resistance (D) All a, b & c
Last Answer : (D) All a, b & c
Description : Pick out the wrong statement. (A) LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals (B) The minimum temperature, at which a petroleum oil vapor catches ... about 30-50 Nm3 of gas (D) Maximum yield of naphthalene is obtained on distillation of crude oil
Last Answer : (B) The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point
Description : The proper arrangement of the petroleum fractions in order of their boiling points is (A) Lubricating oil > diesel > petrol > LPG (B) Lubricating oil > petrol > diesel > LPG (C) Petrol > lubricating oil > diesel > LPG (D) Petrol > diesel > LPG > lubricating oil
Last Answer : (A) Lubricating oil > diesel > petrol > LPG
Description : __________ base crude oil is also called asphaltic crude. (A) Paraffinic (B) Naphthenic (C) Mixed (D) Aromatic
Last Answer : (B) Naphthenic
Description : 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 content (B) Calorific value (C) Quantity of propane (D) Quantity of butane
Last Answer : (B) Calorific value
Description : The yield of straight run LPG from crude oil is about __________ weight percent. (A) 20-25 (B) 1-1.5 (C) 10-15 (D) 0.1-0.2
Last Answer : (B) 1-1.5
Description : Bottom product of atmospheric pressure crude oil distillation column is termed as (A) Reduced crude (B) Heavy ends (C) Asphalt (D) Residuum
Last Answer : (A) Reduced crude
Description : The characterisation factor of a crude oil is calculated as 12.5. It meansthat; it is (A) Paraffinic (B) Naphthenic (C) Intermediate (D) None of these
Last Answer : (A) Paraffinic
Description : Pressure maintained in the high pressure primary tower of a three stage crude oil distillation system is about __________ kg/cm2 . (A) 1.5 (B) 3 (C) 6 (D) 12
Last Answer : (B) 3
Description : Crude oil produced by Indian oil fields are predominantly __________ in nature. (A) Paraffinic (B) Naphthenic (C) Asphaltic (D) Mixed base
Last Answer : (C) Asphaltic
Description : Crude oil is subjected to vacuum distillation in the last stage, because (A) High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose (B) Lighter/low ... prone to thermal decomposition (C) High purity products can be obtained thereby (D) None of these
Last Answer : (A) High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose
Description : Crude petroleum oil is a __________ fuel. (A) Primary (B) Fossil (C) Both (A) & (B) (D) Secondary
Last Answer : (C) Both (A) & (B)
Description : Operating condition in the electrical dehydrators for crude oil is about (A) 6.5 kgf/Cm2 & 95°C (B) 1 atm. & 110 °C (C) 20 kgf/cm2 & 110°C (D) 50 atm. and 150°C
Last Answer : (A) 6.5 kgf/Cm2 & 95°C
Description : Naphtha yield in straight run distillation of crude oil may be about__________ percent. (A) 2 (B) 6 (C) 12 (D) 18
Last Answer : (B) 6
Description : Crude oil is pumped by a __________ pump. (A) Gear (B) Centrifugal
Last Answer : (B) Centrifugal
Description : Paraffin base crude oil as compared to asphalt base crude gives (A) Higher yield of straight run gasoline (B) Higher octane number gasoline (C) Lower viscosity index lube oil (D) Poorer yield of lube oil
Last Answer : (A) Higher yield of straight run gasoline
Description : Percentage of straight run gasoline in a typical crude oil may be around (A) 6 (B) 18 (C) 38 (D) 52
Last Answer : (D) 52
Description : The pressure (kg/cm2 ) and temperature (°C) maintained in electrical desalters for crude oil are respectively (A) 10 and 120 (B) 1 and 200 (C) 50 and 250 (D) 10 and 300
Last Answer : (B) 1 and 200
Description : A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent. (A) 4 (B) 10 (C) 18 (D) 26
Last Answer : (B) 10
Description : Crude oil is transported inland from oil field to refineries, mainly by the (A) Road tankers (B) Rail tankers (C) Underground pipelines (D) None of these
Last Answer : (C) Underground pipelines
Description : Highest quality bitumen is produced from the __________ crude oil. (A) Paraffinic (B) Naphthenic (C) Intermediate (D) Mixed
Description : Feed for reforming is generally (A) Naphtha or straight run gasoline (B) Reduced crude (C) Vacuum gas oil
Last Answer : (A) Naphtha or straight run gasoline
Description : Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? (A) Modern theory (B) Carbide theory (C) Engler theory (D) All (A), (B) and (C
Last Answer : (B) Carbide theory
Description : Water content in the crude oil as it comes out of oil well may be upto __________ percent. (A) 2 (B) 5 (C) 10 (D) 25
Last Answer : (D) 25
Description : Products drawn from the top to bottom of the crude oil distillation column has progressively increasing (A) Boiling points (B) Molecular weight (C) C/H ratio (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Pick out the wrong statement. (A) Pensky-Marten apparatus is used for determining flash points above 50°C (B) Characterisation factor of paraffinic crude oil is more than 12 (C) Abel ... An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index
Last Answer : (D) An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index
Description : The characterisation factor of crude petroleum oil is around (A) 3 (B) 11 (C) 22 (D) 28
Last Answer : (B) 11