Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the abrasion resistance of coke None of these Decreases the hardness of coke Causes brittleness in steel Decreases the abrasion resistance of coke None of these Decreases the hardness of coke Causes brittleness in steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is Can be used for gasification and steam generation A high rank coal A coking coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation A high rank coal A coking coal A black banded coal which burns with a non-smoky yellowish flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas constitutes mainly of CH₄ & CO₂ CO & CO₂ CH₄ & N₂ CO & N₂ CH₄ & CO₂ CO & CO₂ CH₄ & N₂ CO & N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke having higher porosity has Lower strength Lower bulk density Higher reactivity All of these Lower strength Lower bulk density Higher reactivity All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Octane number of 2, 2, 4 - trimethyl pen-tane is 100 More than 100 In between 0 and 100 100 More than 100 In between 0 and 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For long flame and easy ignition, the coal used should have High calorific value Low ash High ash High volatile matter High calorific value Low ash High ash High volatile matter ANSWER DOWNLOAD EXAMIANS APP
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