Fuels and Combustion By-products are __________ recovered in 'Beehive ovens'. Partially Negligibly Fully Not at all Partially Negligibly Fully Not at all ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Semi-bituminous coal containing 25% ash and 20% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Anthracite containing 10% volatile matter and 8% ash Coke breeze containing 25% ash and 2% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Anthracite containing 10% volatile matter and 8% ash Coke breeze containing 25% ash and 2% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Remains same Increases Either A or B, depends on other factors Decreases Remains same Increases Either A or B, depends on other factors Decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 3 & 10 10 & 20 15 & 8 10 & 3 3 & 10 10 & 20 15 & 8 10 & 3 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the highest net calorific value (kcal/Nm³)? Producer gas Natural gas Liquified petroleum gas Carburetted water gas Producer gas Natural gas Liquified petroleum gas Carburetted water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 29 23 19 21 29 23 19 21 ANSWER DOWNLOAD EXAMIANS APP
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