Fuels and Combustion Blast furnace gas is a very poisonous gas because of its predominantly high __________ content. CH₄ H₂O CO CO₂ CH₄ H₂O CO CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Increase Remain unchanged May increase or decrease ; depends on the quantity of products of combustion Decrease Increase Remain unchanged May increase or decrease ; depends on the quantity of products of combustion Decrease ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. 96 4 20 40 96 4 20 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stoichiometric combustion of 12 kg of carbon requires __________ of oxygen. 1kg mole All of these 32 kg 22.4 Nm³ 1kg mole All of these 32 kg 22.4 Nm³ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation of coal, the Volatile matter in coke is zero Yield of tar is about 3% of dry coal Yield of coke oven gas is 290 Nm³ /ton dry coal Temperature maintained is 700°C Volatile matter in coke is zero Yield of tar is about 3% of dry coal Yield of coke oven gas is 290 Nm³ /ton dry coal Temperature maintained is 700°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the abrasion resistance of coke Decreases the hardness of coke Causes brittleness in steel None of these Decreases the abrasion resistance of coke Decreases the hardness of coke Causes brittleness in steel None of these ANSWER DOWNLOAD EXAMIANS APP
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