Fuels and Combustion Which of the following has the highest calorific value? Sub-bituminous coal Anthracite Lignite Peat Sub-bituminous coal Anthracite Lignite Peat ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 30-33 10-15 22-26 1-2 30-33 10-15 22-26 1-2 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will generate maximum volume of product of complete combustion (Nm³/Nm³ of fuel) ? Carburetted water gas Natural gas Blast furnace gas Producers Carburetted water gas Natural gas Blast furnace gas Producers 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. 4 96 20 40 4 96 20 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent. None of these < 37% In between 37 & 71% >71% None of these < 37% In between 37 & 71% >71% ANSWER DOWNLOAD EXAMIANS APP
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