LPG for soft coke
Description : In a boiler, fuel substitution of coal with rice husk results in a) energy conservation b) energy efficiency c) both energy conservation and energy efficiency d) carbon neutrality
Last Answer : d) carbon neutrality
Description : Coal used in power plant is also known as (A) Steam coal (B) Charcoal (C) Coke (D) Soft coal.
Last Answer : Steam coal
Description : Pick out the wrong statement. (A) High concentration of oxygen in flue gas means high stack loss (B) Gaseous fuels require the least % excess air for complete combustion (C) The ratio of fixed carbon to ... coal is called its 'fuel ratio' (D) Calorific value of natural gas is more than that of LPG
Last Answer : (D) Calorific value of natural gas is more than that of LPG
Description : Which of the following fuel gases has the highest calorific value? (A) Natural gas (B) Coal bed methane (CBM) (C) Liquefied petroleum gas (LPG) (D) Sewage gas
Last Answer : (C) Liquefied petroleum gas (LPG)
Description : __________ is the most popular kitchen fuel in India a. LPG b. Kerosene c. Coal d. Firewood
Last Answer : LPG
Description : Soft coke is not (A) Produced by low temperature carbonisation of coal (B) A domestic fuel (C) Used in blast furnaces (D) None of these
Last Answer : (C) Used in blast furnaces
Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg)? (A) Propane and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F. gas and coke oven gas
Last Answer : (A) Propane and acetylene
Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)? (A ... and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F gas and coke oven gas
Last Answer : D) B.F gas and coke oven gas
Description : Which among them is cleaner fuel –coal , LPG, Diesel , kerosene ? a) coal b)LPG c)diesel d)kerosene
Last Answer : b)LPG
Description : Among the fuels given below, the one with highest calorific value is – (1) Coke (2) Coal (3) Wood (4) Natural gas
Last Answer : (4) Natural gas Explanation: The calorific values of different fuels (in Kcal/kg) in dry state are: Wood: 3500; Coal: 4000-7000; Coke: 6500; and Natural Gas: 8600 Kcal/kg.
Description : Among the fuels given below, the one with highest calorific value is (1) Coke (2) Coal (3) Wood (4) Natural gas
Last Answer : Natural gas
Description : . ______energy source is the largest source used in India. a. CNG b. LPG c. Coal d. Bio Gas
Last Answer : Coal
Description : Low temperature carbonisation of coal produces (A) Metallurgical coke (B) Soft coke (C) Very low calorific value coke oven gas (D) No by-products
Last Answer : (B) Soft coke
Description : Coal used in power plant is also known as (A) steam coal (B) charcoal (C) coke (D) soft coal.
Last Answer : Ans: A
Description : LSHS is a type of furnace oil, which (A) Is more viscous than high viscosity furnace oil (HVFO) (B) Stands for low sulphur heavy stock (C) Is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%) (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : A waste heat recovery system in industrial process has been key to reduce ....... Consumption. a) Coal b) Fuel c) Biogas d) Oil
Last Answer : Fuel
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 : Which among the following has the highest flue gas loss on combustion due to Hydrogen in the fuel? a) natural gas b) furnace oil c) coal d) light diesel oil
Last Answer : a) natural gas
Description : The reason for excessive clinker formation in gas producers is the (A) Use of coal/coke containing a high % of fines and ash (B) Use of fuel having too low an ash fusion temperature (C) Development of hot spots in the fuel bed and an abnormally high rate of gasification (D) All (A), (B) and (C)
Description : Fuel used in B.F. stove is (A) Pulverised coal (B) Furnace oil (C) Blast furnace gas/mixed gas (D) Coke oven gas
Last Answer : (C) Blast furnace gas/mixed gas
Description : Which of the following is unsuitable fuel for producer gas manufacture? (A) Coke (B) Anthracite (C) Coal having low fusion point of its ash (D) Coal having high fusion point of its ash
Last Answer : (C) Coal having low fusion point of its ash
Description : Preheating of coal charge for the coke ovens reduces the (A) Time of carbonisation (B) Yield of gas and tar (C) Fuel consumption in coking (D) All (A), (B) and (C)
Description : Producer gas is obtained by A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast B. carbonisation of bituminous coal C. passing steam over incandescent coke D. passing air and a large amount of steam over waste coal at about 650°C
Last Answer : Answer: A
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 : Fertilizer plant getting its hydrogen requirement partly from coke oven gas is (in India) situated at (A) Rourkela (under SAIL) (B) Barauni (under HFC) (C) Nangal (under NFL) (D) Talcher (under FCI)
Last Answer : (A) Rourkela (under SAIL)
Description : Which of the following is not a 'manufactured' fuel? (A) LPG (B) Coal briquettes (C) Tar (D) Colloidal fuels
Last Answer : (C) Tar
Description : Coke is made by heating coal in the absence of air at: A. 700 °C B. 1300 °C C. 900 °C D. 1700 °C ANSWER: Why are soft drinks made with chilled water rather than water at room ... B. Chilled water enhances the taste C. Chilled water attracts more carbon dioxide D. Chilled water is more hygienic
Last Answer : ANSWER: C
Description : The tool used for performance assessment and logical evaluation of avenues for improvement in Energy management and audit is a) Fuel substitution c) Energy pricing b) Monitoring and verification d) Bench marking
Last Answer : Bench marking
Description : The tool used for performance assessment and logical evaluation of avenues for improvement in Energy management and audit is a) Fuel substitution b) Monitoring and verification c) Energy pricing d) Bench marking 23. Infrared thermometer is used
Description : Air/gas ratio for complete combustion will be the highest for (A) LPG (B) Gobar gas (C) Coke oven gas
Last Answer : (A) LPG
Description : Which of the following is not a manufactured fuel? (A) Coke breeze (B) Soft coke (C) Colloidal fuels (D) Charcoal
Last Answer : (A) Coke breeze
Description : Main use of soft coke is as __________ fuel. (A) Domestic (B) Blast furnace (C) Foundry (D) None of these
Last Answer : (A) Domestic
Description : What is the full form of 'LDO' ? -How To ?
Last Answer : The full form of 'LDO' is Light Diesel Oil
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 : Which of the following is a poisonous fuel gas? (A) Coke oven gas (B) Blast furnace gas (C) Natural gas (D) None of these
Last Answer : (B) Blast furnace gas
Description : Which of the following is a primary fuel? (A) Blast furnace coke (B) Gasoline (C) Natural gas (D) Wood charcoal
Last Answer : (C) Natural gas
Description : What is applied to the rice husk before seeding ?
Last Answer : Before placing the seeds, dung and water are applied on the paddy field.
Description : Which naturally occurring element in the rice husk makes it termite resistant?
Last Answer : Silicon
Description : Which of the following is not used as filter aid? (A) Asbestos (B) Diatomaceous earth (C) Purified wood cellulose (D) Rice husk
Last Answer : (D) Rice husk
Description : Aspergillosis (Brooder pneumonia) in young chicks is predisposed by the type of litter B A. rice husk B. Saw dust C. sand D. None of the these
Last Answer : Saw dust
Description : Rice husk is used for making cement because it contains a. Silica b. Calcium c. Iron d. None of these
Last Answer : a. Silica
Description : Write any two uses of rice husk and coir fibre.
Last Answer : Uses of rice husk : 1. To make sound insulating material. 2. To make thermal insulation. 3. Used in manufacturing of clay bricks. 4. To make high grade concrete & mortar. 5. Used as ... delicate articles. 6. Used for geotextile. 7. Used in plaster work to make crack resistant plaster.
Description : Define rice husk. State the uses of rice husk.
Last Answer : Rice Husk: - The outer most layer of paddy grain is called as rice husk. It is separated from Brown rice in rice mill. It has high silica content. Rice Husk is highly resistant to moisture ... for concrete and board. 4) Used in generation of heat energy, stream energy and electricity generation.
Description : Write any four uses of rice husk
Last Answer : Uses - 1) In the manufacturing of bricks. 2) In thermal insulation of building, rice husk can be used. 3) The ash produced after the husks have been burned is high in silica, which ... fillers for concrete and board. 4) Used in generation of heat energy, stream energy and electricity generation.
Description : Beehive coke oven (A) Facilitates by-products recovery (B) Takes 2-3 days for coking of coal but requires no external fuel for heating (C) Gives larger yield of coke (around 85%) as compared to by-product ovens (D) Produces coke with very poor strength
Last Answer : (B) Takes 2-3 days for coking of coal but requires no external fuel for heating
Description : Fuel consumption in coke making can be reduced by (A) Preheating, blending and de-ashing the coal (B) Stamped charging of coal (C) Dry quenching of coke (D) All (A), (B) and (C)
Description : Which of the following is considered as superior quality of coal? (A) Bituminous coal (B) Peat (C) Lignite (D) Coke.
Last Answer : Bituminous coal
Description : Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. (A) 6 (B) 12 (C) 18 (D) 24
Last Answer : (D) 24
Description : Which of the following fuels is generally not used in thermal power plant boiler firing? (A) Furnace oil, light diesel oil and tar/PCM (B) Pulverised coking coal (C) Coal middling from washeries (D) B.F. gas, coke oven gas and L.D. converter gas
Last Answer : (B) Pulverised coking coal