Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using High amount/current of combustion air Preheated secondary air Low amount/current of combustion air Very little excess air High amount/current of combustion air Preheated secondary air Low amount/current of combustion air Very little excess air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Neither A nor B Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in KOH Ammoniacal cuprous chloride None of these Pyrogallol solution KOH Ammoniacal cuprous chloride None of these Pyrogallol solution ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as SO₂ O₂ N₂ CO SO₂ O₂ N₂ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Gobar gas Carburetted water gas Natural gas LPG Gobar gas Carburetted water gas Natural gas LPG ANSWER DOWNLOAD EXAMIANS APP