Fuels and Combustion Removal of hydrogen from coke oven gas Does not alter its calorific value Decreases its calorific value Increases its calorific value Is not possible on commerical scale Does not alter its calorific value Decreases its calorific value Increases its calorific value Is not possible on commerical scale ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen Oxygen enriched air Air None of these Oxygen Oxygen enriched air Air None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack (chimney) height in a big thermal power plant is dictated by the Draught to be created Pollution control aspect None of these Limitation of constructional facilities Draught to be created Pollution control aspect None of these Limitation of constructional facilities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard pitch is used for making Plastics Perfumes Insecticides Pulverised fuel Plastics Perfumes Insecticides Pulverised fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All of these All tar is evolved at < 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All of these All tar is evolved at < 600°C ANSWER DOWNLOAD EXAMIANS APP
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