Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 10 & 3 3 & 10 10 & 20 15 & 8 10 & 3 3 & 10 10 & 20 15 & 8 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Long flame None of these Heat losses Condensation of water vapour from the fuel gas Long flame None of these Heat losses Condensation of water vapour from the fuel gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Low amount/current of combustion air High amount/current of combustion air Very little excess air Preheated secondary air Low amount/current of combustion air High amount/current of combustion air Very little excess air Preheated secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Remains same Decreases May increase or decrease ; depends on the type of fuel Increases Remains same Decreases May increase or decrease ; depends on the type of fuel Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have Less moisture content High bulk density High fusion point of its ash Lower ash content Less moisture content High bulk density High fusion point of its ash Lower ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke made in narrower by-product coke ovens (as compared to wider ovens) is Less reactive Stronger All of these Smaller in size Less reactive Stronger All of these Smaller in size ANSWER DOWNLOAD EXAMIANS APP
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