CO & H2 are the constituents of
(A) Producer gas
(B) Water gas
(C) Coke oven gas
(D) All (A), (B) and (C)
Description : Sometimes water is sprayed during coal charging in the coke oven, which helps in (A) Prevention of clinker formation in the oven (B) Controlling the dust nuisance while charging the coal (C) Reducing the cracking of hydrocarbons in ... represented by C + H2O = CO + H2 ) (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Coke oven gas consists mainly of (A) H2 & CH4 (B) CO & CO2 (C) H2 & CO (D) CH4 & CO
Last Answer : (A) H2 & CH4
Description : Coke oven gas constitutes mainly of (A) H2 & CO (B) H2 & CH4 (C) CH4 & CO (D) H2 & CO2
Last Answer : (B) H2 & CH4
Description : With increase in the temperature of carbonisation of coal (A) Hydrogen content of coke oven gas increases due to cracking ofhydrocarbons (B) Methane content in the coke oven gas decreases and carbon monoxide content increases ( ... compensated by increase in CO & H2 content (D) All (A), (B) and (C)
Description : Coke oven gas consists mainly of (A) H2 , & CH4 (B) CO, & CO2 (C) H2 , & CO (D) CH4 , & CO
Last Answer : (A) H2 , & CH4
Description : Largest constituent of coke oven gas is (A) N2 (B) H2 (C) CH4 (D) CO
Last Answer : (B) H2
Description : Main constituents of purified Lurgi gas are (A) H2 , CmHn & CO2 (B) CO, H2 & CH4 (C) CO2 , O2 & CO (D) N2 , H2 & CO2
Last Answer : (B) CO, H2 & CH4
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 : 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 : Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2 (D) NH3
Last Answer : (B) CH4
Description : In high temperature carbonisation of coal compared to low temperature carbonisation (A) Yield of ammonia is less (B) Aromatic content of tar is low (C) H2 content in the coke oven gas is more (D) Calorific value of the coke oven gas is lower
Last Answer : (C) H2 content in the coke oven gas is more
Description : Producer gas comprises mainly of (A) CO & N2 (B) CO & H2 (C) CO2 & N2 (D) CO2 & H2
Last Answer : (A) CO & N2
Description : Which of the following is called "blue gas”? (A) Coke oven gas (B) Water gas (C) Natural gas (D) Producer gas
Last Answer : (B) Water gas
Description : The calorific value is the highest out of the following for (A) Producer gas (B) Water gas (C) Coke oven gas (D) Blast furnace gas
Last Answer : (C) Coke oven gas
Description : Which of the following contains least amount of N2? (A) Coke oven gas (B) Blast furnace gas (C) Producer gas (D) Water gas (blue gas)
Last Answer : (A) Coke oven gas
Description : Which of the following is not a by-product fuel? (A) Producer gas (B) Blast furnace gas (C) Coke oven gas (D) Refinery gas
Last Answer : (A) Producer gas
Description : Which of the following is the most poisonous gas? (A) Coke oven gas (B) Producer gas (C) Blast furnace gas (D) L.D. converter gas
Last Answer : (D) L.D. converter gas
Description : A fertiliser plant is classified as a gas based fertiliser plant, when it uses__________ gas as a source of hydrogen for the manufacture of ammonia. (A) Coke oven (B) Producer (C) Natural (D) Coal
Last Answer : (C) Natural
Description : Fertiliser plants get their N2 requirements (A) By fractionation of liquefied air (B) By dissociating oxides of nitrogen (C) From coal gas (coke oven gas) (D) From producer gas
Last Answer : (A) By fractionation of liquefied air
Description : The producer gas basically consists of a) Only CH4 b) CO & CH4 c) CO, H2 & CH4 d) Only CO & H2
Last Answer : c) CO, H2 & CH4
Description : Which of the following gas is mostly used in town for street and domestic lighting and heating? A. Producer gas B. Coal gas C. Mond gas D. Coke oven gas
Last Answer : Answer: B
Description : Producer gas consists mainly of (A) CO, CO2 N2 , H2 (B) CO, H2 (C) H2 , CH4 (D) C2H2 , CO2 , H2
Last Answer : (A) CO, CO2 N2 , H2
Description : Producer gas is a mixture of (a) CO and H2 (b) CO and N2 (c) CH4 and H2 (d) CO2 and H2
Last Answer : Ans:(a)
Description : Which of the following is the most reactive (as regards the formation of CO + H2 from C + H2O)? (A) Blast furnace coke (B) Low temperature coke (C) Anthracite coal (D) Sub-bituminous coa
Last Answer : (B) Low temperature coke
Description : Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by (A) Quenching of hot coke (B) Discharging in the river stream (C) Filtration and recycling for cooling coke oven gas (D) None of these
Last Answer : (A) Quenching of hot coke
Description : Gross & net calorific value is the same for (A) Blast furnace gas (B) Coke oven gas (C) L.D. converter gas (D) None of these
Last Answer : (C) L.D. converter gas
Description : Coke ovens in steel plant are heated by (A) Electricity (B) Coke oven gas (C) Mixed gas (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : High ash coals (A) Are soft & friable (poor strength and size stability) (B) Require longer time of carbonisation as ash offers resistance to heat transfer (C) Produce larger quantity of coke oven gas (D) None of these
Last Answer : (A) Are soft & friable (poor strength and size stability)
Description : In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. (A) Difference in gross & net calorific value of the coke oven gas (B) Free carbon content in tar (C) Yield percentage of coke (D) Yield of ammonia present in coke oven gas
Last Answer : (A) Difference in gross & net calorific value of the coke oven gas
Description : . Water gas constitutes mainly of (A) CO & H2 (B) CO & N2 (C) CO2 & H2 (D) CH4 & H2
Last Answer : (A) CO & H2
Description : Scaling of furnace stock is reduced by __________ in flue gas. (A) CO (B) H2 (C) High CO/CO2 (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Blast furnace gas constitutes mainly of (A) N2 & CH4 (B) N2 & H2 (C) N2 & CO (D) CH4 & CO2
Last Answer : (C) N2 & CO
Description : L.D. converter gas (produced in steel plant) comprises mainly of (A) CO (upto 65%) & CO2 (B) CO2 & H2 (C) CO & O2 (D) CO2 & O2
Last Answer : (A) CO (upto 65%) & CO2
Description : Synthesis gas' meant for the synthesis of organic compound is a variable mixture of (A) N2 & H2 (B) CO2 & H2 (C) CO & H2 (D) C & H2
Last Answer : (C) CO & H2
Description : Which of the following constituents of coal is the most important in the production of coke? (A) Moisture (B) Ash (C) Volatiles (D) Carbon
Last Answer : (D) Carbon
Description : Absorption with chemical reaction' is involved in the removal of (A) Carbon dioxide from gaseous stream using alkaline solution (B) Benzol from coke oven gas using solar oil/wash oil (C) Ammonia ... gas using refrigerated water (D) Tar from coke oven gas in primary gas coolers using chilled water
Last Answer : (A) Carbon dioxide from gaseous stream using alkaline solution
Description : Absorption accompanied with chemical reaction is exemplified by the absorption of (A) Ammonia in water (B) Benzol present in coke oven gas by wash oil (C) SO2 in alkaline solution (D) All (A), (B) and (C)
Last Answer : (C) SO2 in alkaline solution
Description : Removal of __________ exemplifies an adsorption unit operation. (A) Uranium from its ore (B) Water from petrol (C) Ammonia from coke oven gas (D) Mustard oil from mustard seed
Last Answer : (B) Water from petro
Description : Which of the following fuel gases is heavier than air? (A) Blast furnace gas (B) Coke oven gas (C) Natural gas (D) Water gas
Last Answer : (A) Blast furnace gas
Description : Out of the following fuels, the difference between gross and net calorific value will be minimum in case of (A) Coke oven gas (B) Water gas (C) Natural gas (D) Blast furnace gas
Last Answer : (D) Blast furnace gas
Description : Which of the following has the highest gross calorific value? (A) Blast furnace gas (B) Coke oven gas (C) Carburetted water gas (D) Oil refinery gas
Last Answer : (D) Oil refinery gas
Description : Which is the heaviest fuel gas out of the following? (A) Blast furnace gas (B) Coke oven gas (C) Water gas (D) Carburetted water gas
Description : Pick out the wrong statement: (A) Carburetted water gas is also called blue gas (B) Coals are divided in four species according to their carbon content in Seylor's classification (C) Carbonisation time ... and net calorific value of a fuel is the same, if it does not contain hydrogen or hydrocarbons
Last Answer : (A) Carburetted water gas is also called blue gas
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 not a commercially used feed-stock for the production of ammonia synthesis gas? (A) Water (B) Naphtha (C) Tar (D) Coal/coke oven gas
Last Answer : (C) Tar
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 : . Which of the following fuel gases contains maximum amount of carbon monoxide? (A) Coke oven gas (B) Water gas (C) Blast furnace gas (D) L.D. converter gas
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 : Producer gas containing least amount of tar is produced by the (A) Partial combustion of coal (B) Partial combustion of large size (< 50 mm) coke (C) High pressure gasification of coal (e.g. in Lurgi gasifier) (D) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier)
Last Answer : (B) Partial combustion of large size (< 50 mm) coke
Description : High ash containing coke (A) Produces more slag when used in the blast furnace (B) Has poor strength and abrasion resistance (C) Is desirable in producer gas manufacture (D) None of these
Last Answer : (A) Produces more slag when used in the blast furnace