Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.8 A M = 1.1 A M = A M = 0.5 A M = 1.8 A M = 1.1 A M = A M = 0.5 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 35 20 10 5 35 20 10 5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Both A & B Neither A nor B Mature Young Both A & B Neither A nor B Mature Young ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes Reduction in coal size All of these Decrease in its caking capacity Increase in its friability Reduction in coal size All of these Decrease in its caking capacity Increase in its friability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is CH₄ CO₂ H₂ N₂ CH₄ CO₂ H₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal containing very high percentage of durain is called __________ coal. Boghead Bright Non-banded Splint Boghead Bright Non-banded Splint ANSWER DOWNLOAD EXAMIANS APP
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