Fuels and Combustion A sooty flame can be made non-luminous by Shutting air supply Admitting more air Shutting gas supply Admitting more gas Shutting air supply Admitting more air Shutting gas supply Admitting more gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Remain unchanged Decrease Increase May increase or decrease ; depends on the quantity of products of combustion Remain unchanged Decrease Increase May increase or decrease ; depends on the quantity of products of combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Assam coals suffers mainly from the disadvantage of high __________ content. Ash Sulphur (4-6%) Volatile matter Moisture Ash Sulphur (4-6%) Volatile matter Moisture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Both B and C Adhering impurities Mineral matter Inherent impurities Both B and C Adhering impurities Mineral matter Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens Produces larger size coke May damage its walls due to abrupt excessive swelling of coal Increases the time of carbonisation None of these Produces larger size coke May damage its walls due to abrupt excessive swelling of coal Increases the time of carbonisation None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following combustibles is absent in blast furnace gas? CO CH₄ H₂ None of these CO CH₄ H₂ None of these ANSWER DOWNLOAD EXAMIANS APP
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