Fuels and Combustion Fixed carbon in coal is defined as That present in volatile matters The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal That present in volatile matters The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of a fuel is characterised by the high __________ in the flue gas. Oxygen Temperature Carbon monoxide Smoke Oxygen Temperature Carbon monoxide Smoke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following petrographic constituents of coal is non-coking? Fussain Durain Clarain Vitrain Fussain Durain Clarain Vitrain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases has the highest calorific value ? Liquefied petroleum gas (LPG) Natural gas Coal bed methane (CBM) Sewage gas Liquefied petroleum gas (LPG) Natural gas Coal bed methane (CBM) Sewage gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of the coal blend used for the manufacture of metallurgical coke should be around 5 48 21 40 5 48 21 40 ANSWER DOWNLOAD EXAMIANS APP
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