Fuels and Combustion Volatile matter content in coking coal may be about __________ percent. 46 7 22 1 46 7 22 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it Burns completely None of these Shows little or no fusing action Gives smokeless burning Burns completely None of these Shows little or no fusing action Gives smokeless burning ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Artificial draught produced by a fan can be controlled by the Speed of the fan All of these Variation in the pitch of the fan blades Damper Speed of the fan All of these Variation in the pitch of the fan blades Damper ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A fuel with high heat release rate will None of these Require smaller combustion chamber Have high calorific value Have high adiabatic flame temperature None of these Require smaller combustion chamber Have high calorific value Have high adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Reduces the coking time 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 None of these Reduces the coking time 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 None of these ANSWER DOWNLOAD EXAMIANS APP
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