Fuels and Combustion Combustion of pulverised coal as compared to that of lump coal Develops a non-luminous flame Develops a low temperature flame Provides a lower rate of heat release Can be done with less excess air Develops a non-luminous flame Develops a low temperature flame Provides a lower rate of heat release Can be done with less excess air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal Coke oven gas yield is more All of these Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more Coke oven gas yield is more All of these Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Thick fire bed and preheated primary air Low forced draught and fuel bed temperature All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur Thick fire bed and preheated primary air Low forced draught and fuel bed temperature All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzol is used Both A & B For producing benzene, tolune & xylene by its distillation Neither A nor B As a motor fuel blend Both A & B For producing benzene, tolune & xylene by its distillation Neither A nor B As a motor fuel blend ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the equilibrium moisture content of the coal increases, its Swelling number increases Calorific value increases Swelling number decreases Bulk density decreases Swelling number increases Calorific value increases Swelling number decreases Bulk density decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between gross and net calorific value will be minimum in case of Blast furnace gas Water gas Coke oven gas Natural gas Blast furnace gas Water gas Coke oven gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
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