Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the Increase in temperature (i.e. preheating) Increase in gas pressure Use of pure oxygen for combustion instead of air All of these Increase in temperature (i.e. preheating) Increase in gas pressure Use of pure oxygen for combustion instead of air All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of coke oven gas just before entering into saturator (for recovery of NH₃) is about __________ °C. 65 120 180 30 65 120 180 30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of the coke is a measure of its Bulk density Reactivity None of these Strength Bulk density Reactivity None of these Strength ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms. 5 to 15 3 to 4 20 to 40 1 to 2 5 to 15 3 to 4 20 to 40 1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Fat' coal means a coal having Low ash content Low calorific value Non smoking tendency High volatile matter Low ash content Low calorific value Non smoking tendency High volatile matter ANSWER DOWNLOAD EXAMIANS APP