Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by None of these Air Oxygen enriched air Oxygen None of these Air Oxygen enriched air Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Turndown ratio of a gas burner is equal to the Both A & B Maximum to minimum heat input ratio Maximum to minimum permissible gas flow rate Minimum to maximum heat input ratio Both A & B Maximum to minimum heat input ratio Maximum to minimum permissible gas flow rate Minimum to maximum heat input ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not endothermic? Cracking Reforming Gasification Partial oxidation Cracking Reforming Gasification Partial oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 6 36 28 18 6 36 28 18 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains more than 90% fussain Contains more than 90% durain Contains mainly vitrain & clarain and is generally coking Is non-coking Contains more than 90% fussain Contains more than 90% durain Contains mainly vitrain & clarain and is generally coking Is non-coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Preheat the tertiary air used for complete combustion of CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner Burn CO to CO₂ Preheat the tertiary air used for complete combustion of CO to CO₂ Dry and transport the coal Have proper combustion by supplying it around the burner Burn CO to CO₂ ANSWER DOWNLOAD EXAMIANS APP