Fuels and Combustion Which of the following has the highest flame velocity? C₂H₆ H₂ CH₄ CO C₂H₆ H₂ CH₄ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Low fusion point of ash (< 1100° C) Use of thick fire bed Use of preheated primary air All of these Low fusion point of ash (< 1100° C) Use of thick fire bed Use of preheated primary air All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called Fire point Burning temperature Smoke point Kindling temperature Fire point Burning temperature Smoke point Kindling temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following constituents of coal is the most important in the production of coke? Ash Volatiles Moisture Carbon Ash Volatiles Moisture Carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time None of these Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Water gas constitutes mainly of CH₄ & H₂ CO₂ & H₂ CO & H₂ CO & N₂ CH₄ & H₂ CO₂ & H₂ CO & H₂ CO & N₂ ANSWER DOWNLOAD EXAMIANS APP
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