Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 10200 1800 3200 5400 10200 1800 3200 5400 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable Increases its caking power Reduces its calorific value Badly affects the quality of steel Is not undersirable ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Is non-coking Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Contains more than 90% fussain Is non-coking Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Contains more than 90% fussain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ionisation potential applied across the electrodes of electrostatic tar precipitator is around 230 V DC 230 V AC 60 KV AC 60 KV DC 230 V DC 230 V AC 60 KV AC 60 KV DC ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation Is meant for the production of 'metallurgical coke' Produces less quantity of tar than high temperature carbonisation Produces higher quantity of gas than high temperature carbonisation Is mainly for producing the smokeless domestic coke Is meant for the production of 'metallurgical coke' Produces less quantity of tar than high temperature carbonisation Produces higher quantity of gas than high temperature carbonisation Is mainly for producing the smokeless domestic coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Purity of coke means that, it is high in carbon and low in Iron Volatiles Moisture Ash Iron Volatiles Moisture Ash ANSWER DOWNLOAD EXAMIANS APP