Fuels and Combustion Highly reactive coke have lower Porosity Both B and C Coke reactivity index (CRI) Critical air blast (CAB) value Porosity Both B and C Coke reactivity index (CRI) Critical air blast (CAB) value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal Ammonia yield is more Free carbon in tar is more All of these Aliphatic tar is produced Ammonia yield is more Free carbon in tar is more All of these Aliphatic tar is produced ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas burns with an yellowish flame, because of the presence of NH₃ CO₂ CH₄ H₂ NH₃ CO₂ CH₄ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation 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 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 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) ? Propane and acetylene Propane and LPG Sewage gas and gobar gas F. gas and coke oven gas Propane and acetylene Propane and LPG Sewage gas and gobar gas F. gas and coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the All of these Yield of gas and tar Fuel consumption in coking Time of carbonisation All of these Yield of gas and tar Fuel consumption in coking Time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
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