Fuels and Combustion Preheating of __________ the flame temperature. The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Abrasion index of blast furnace coke should be around __________ percent. 20 80 55 35 20 80 55 35 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Turndown ratio of a gas burner is equal to the Maximum to minimum permissible gas flow rate Minimum to maximum heat input ratio Maximum to minimum heat input ratio Both A & B Maximum to minimum permissible gas flow rate Minimum to maximum heat input ratio Maximum to minimum heat input ratio Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 1100 950 500 750 1100 950 500 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Pulverised coal Furnace oil Lump coal (fixed on chain grate) Coke oven gas Pulverised coal Furnace oil Lump coal (fixed on chain grate) Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be Same Data insufficient; can't be predicted More Less Same Data insufficient; can't be predicted More Less ANSWER DOWNLOAD EXAMIANS APP
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