Fuels and Combustion The heat of combustion of a fuel Can't be known without calculating it Is equal to the heat of formation Is always negative Is always positive Can't be known without calculating it Is equal to the heat of formation Is always negative Is always positive ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value? Lignite Sub-bituminous coal Peat Anthracite Lignite Sub-bituminous coal Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Yield of pitch from distillation of high temperature tar is around __________ percent. 10 90 65 25 10 90 65 25 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Density Electrical resistivity None of these Porosity Density Electrical resistivity None of these Porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to Inadequate ventilation Low temperature oxidation All of these Storage in large heaps with small surface to volume ratio Inadequate ventilation Low temperature oxidation All of these Storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is called "blue gas"? Coke oven gas Water gas Natural gas Producer gas Coke oven gas Water gas Natural gas Producer gas ANSWER DOWNLOAD EXAMIANS APP
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