Description : Ammonia synthesis gas is produced from fuel oil by (A) Steam reforming (B) Hydro-cracking (C) Partial oxidation (D) Hydrogenation
Last Answer : (C) Partial oxidation
Description : Ammonia synthesis gas is produced from natural gas by (A) Thermal cracking (B) Steam reforming (C) Partial oxidation (D) Hydrogenation
Last Answer : (B) Steam reforming
Description : Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene? (A) Reforming (B) Pyrolysis (C) Alkylation (D) Hydrocracking
Last Answer : (A) Reforming
Description : Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in (A) Pyrolysis of oil (B) Sintering of porous catalyst (C) Hydrogen embrittlement (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Describe the following unit processes: (i) Pyrolysis (ii) Hydration (iii) Hydrogenation.
Last Answer : i)Pyrolysis: The decomposition of a compound by heat is called pyrolysis. Large alkane molecules are broken down to give lower molecular weight alkanes, alkenes and hydrogen. Eg: When ethane is heated to 500 ... Chemical Reaction for hydrogenation: CH2= CH2 + H2 → CH3-CH3 C6H6 + 3H2→C6H12
Description : The main reaction in reforming is the (A) Dehydrogenation of naphthenes (B) Hydrogenation of naphthenes (C) Hydrocracking of paraffins (D) Saturation of olefins
Last Answer : (A) Dehydrogenation of naphthenes
Description : Nickel is not used as a catalyst in the __________ reaction. (A) Shift conversion (B) Oil hydrogenation (C) Steaming reforming of naphtha (D) Ammonia cracking/dissociation
Last Answer : (A) Shift conversion
Description : Which of the following is the most suitable feed for platforming process (reforming)? (A) Olefinic hydrocarbon (B) Naphtha (C) Fuel oil (D) Atmospheric residue
Last Answer : (A) Olefinic hydrocarbon
Description : Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by (A) Iron-steam reaction (B) Electrolysis of water (C) Steam reforming of naphtha (D) Its cryogenic separation from coke oven gas
Last Answer : (A) Iron-steam reaction
Description : Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts. (A) Steam reforming (B) Distillation (C) Desulphurisation (D) None of these
Last Answer : (B) Distillation
Description : Liquid hydrocarbons are converted to low molecular weight gaseous hydrocarbons by a process known as (a) hydrogenation (b) reforming (c) cracking (d) reduction
Last Answer : Ans:(c)
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 : Bitumen of grade 80/100 means (A) Its penetration value is 8 mm (B) Its penetration value is 10 mm (C) Its penetration value is 8 to 10 mm (D) Its penetration value is 8 to 10 cm
Last Answer : Answer: Option C
Description : Penetration test on bitumen is used for determining its (A) Grade (B) Viscosity (C) Ductility (D) Temperature susceptibilit
Last Answer : Answer: Option A
Description : Which of the following oil gasification processes is non-catalytic? (A) Semet-Solvay process (B) Segas process (C) Onia-Gegi process (D) Steam reforming of naphtha
Last Answer : (A) Semet-Solvay process
Description : Optimum reaction temperature in steam reforming of naphtha is __________ °C. (A) 700 - 1000 (B) 300 - 450 (C) 1500-1700 (D) 100-200
Last Answer : (A) 700 - 1000
Description : Catalyst used in steam reforming of naphtha is (A) Bauxite (B) Cobalt (C) Nickel oxide on alumina support (D) Chromium
Last Answer : (C) Nickel oxide on alumina support
Description : Steam reforming of naphtha is a source of hydrogen production for nitrogenous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha? (A) 1.5 : 1 (B) 3.5 : 1 (C) 10 : 1 (D) 15 : 1
Last Answer : (B) 3.5 : 1
Description : Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition? (A) Electrolysis of water (B) Cryogenic removal of H2 from coke oven gas (C) Steam reforming of naphtha (D) Natural gas cracking
Last Answer : (A) Electrolysis of water
Description : Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by (A) Steam reforming of naphtha and cracking of natural gas (B) Electrolysis of water (C) Cryogenic separation of hydrogen from coke oven gas (D) All (A), (B) and (C)
Description : Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis? (A) H2 separation from coke oven ga (B) Steam reforming of naphtha (C) Cracking of natural gas (D) Electrolysis of water
Last Answer : (D) Electrolysis of water
Description : Catalyst used in steam reforming of naphtha is (A) Nickel (B) Platinum (C) Silica gel (D) Rhodium
Last Answer : (A) Nickel
Description : Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process. (A) Autocatalytic (B) Endothermic (C) Exothermic (D) Non-catalytic
Last Answer : (B) Endothermic
Description : Which of the following is not endothermic in nature? (A) Combustion of sulphur (B) Gasification of carbon (C) Thermal cracking of fuel oil (D) Steam reforming of naphtha
Last Answer : (A) Combustion of sulphur
Description : Conversion of CO to CO2 by steam in presence of a catalyst is called (A) Steam reforming (B) Shift conversion (C) Steam gasification (D) None of these
Last Answer : (B) Shift conversion
Description : Consider the production of ammonia from methene and air as raw materials. The catalysts used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis. (A) (i) - Ni/Al2O3 ; (ii) - Cu - ZnO/ ... (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3 (D) (i) - Fe/Al2O3 ; (ii) - Ni/Al2O3
Last Answer : (C) (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3
Description : Which of the following is the costliest source of getting hydrogen on commercial scale for the manufacture of nitrogenous fertiliser? (A) Coal gasification (B) Steam reforming of naphtha (C) Electrolysis of water (D) Coke oven gas
Last Answer : (C) Electrolysis of water
Description : Which of the following represents hardest grade of bitumen? (A) 30/40 (B) 60/70 (C) 80/100 (D) 100/120
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 : Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of (A) 4 kgf/cm2 & 500°C (B) 10 kgf/cm2 & 1000°C (C) 40 kg/cm2 & 200°C (D) 100 kgf/cm2 & 500°C
Last Answer : (A) 4 kgf/cm2 & 500°C
Description : Commercially ethylene is produced from naphtha by (A) Catalytic cracking (B) Catalytic dehydrogenation (C) Pyrolysis (D) Hydrocracking
Last Answer : (D) Hydrocracking
Description : The most suitable solvent for deasphalting vacuum residue is (A) Propane (B) Methyl ethyl ketone (C) Doctor's solution (D) Methanol amine
Last Answer : (B) Methyl ethyl ketone
Description : 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 (A) Thermal cracking (B) Gum formation (C) Coking (D) Discoloration
Last Answer : (C) Coking
Description : Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil (A) Gives higher yield of petrol (B) Lower octane number of petrol (C) Higher sulphur content in the product (D) Higher gum forming material in petro
Last Answer : (A) Gives higher yield of petrol
Description : Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? (A) Naphtha (B) Vacuum residue (C) Light gas oil (D) Diesel
Last Answer : (B) Vacuum residue
Description : In most of the vacuum crystalliser, vacuum is generally produced by means of a (A) Suction pump (B) Compressed air jet (C) Steam jet ejector with a barometric condenser (D) None of these
Last Answer : (C) Steam jet ejector with a barometric condenser
Description : An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are ... (D) More number of trays are required and the residue composition is more dilute in methano
Last Answer : (A) Less number of trays are required
Description : The ductility value of bitumen for suitability in road construction should not be less than (A) 30 cm (B) 40 cm (C) 50 cm (D) 60 cm
Description : Select the correct statement. (A) Quantity of binder required for tack coat is less than that required for prime coat (B) Prime coat treatment is given for plugging the voids in water ... the final coat over certain previous bituminous pavements (D) A bitumen primer is a high viscosity cutback
Last Answer : Answer: Option D
Description : Plastic bitumen is generally used for (A) Road pavements (B) Expansion joints (C) Crack fillings (D) None to these
Description : Discuss the merits and demerits of bitumen road.
Last Answer : The merits of bitumen road are as follows: 1) It gives joint less smooth surface. 2) Failure of Bitumen road is gradual. 3) The quick repair of road is possible. 4) Curing time is ... . 3) They develop hydrocarbon pollution to soil. 4) Maintenance cost is more than cement concrete road.
Description : Highest quality bitumen is produced from the __________ crude oil. (A) Paraffinic (B) Naphthenic (C) Intermediate (D) Mixed
Last Answer : (B) Naphthenic
Description : Styrene which is a monomer for the production of polystyrene, is commercially produced by the (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch
Last Answer : (A) Catalytic dehydrogenation of ethyl benzene
Description : Gobar gas is produced by the __________ of cow dung. (A) Fermentation (B) Oxidation (C) Hydrogenation (D) None of these
Last Answer : (A) Fermentation
Description : Pick out the wrong statement. (A) Catalytic hydrogenation of carbon monoxide produces methyl alcohol (B) In nylon-6, the number 6 represents the total number of carbon atoms in the ring (C ... are benzene and chlorine (D) Ethanolamines are produced by using ammonia and ethylene oxide as raw material
Last Answer : (C) Raw materials for DDT manufacture are benzene and chlorine
Description : Styrene (a monomer for the production of polystyrene) is commercially produced by (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch
Description : Presence of free moisture in coal during its high temperature carbonisation (A) Reduces the coking time (B) Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls (C) Increases the loss of fine coal dust from the ovens when charging (D) None of these
Last Answer : (B) Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls
Description : Thermal pyrolysis of ethylene dichloride produces (A) Trichloroethylene (B) Vinyl chloride (C) Ethanol amine (D) Ethylene oxid
Last Answer : (B) Vinyl chloride
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 : Pyrolysis of kerosene or natural gasoline is done to produce mainly the (A) Olefins and aromatics (B) Lighter paraffins (C) Stabilised gasoline (D) Diesel
Last Answer : (A) Olefins and aromatic