Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 700 to 850 550 to 650 350 to 450 100 to 150 700 to 850 550 to 650 350 to 450 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzene is used As a perfume For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As an explosive As a perfume For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As an explosive ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Incomplete combustion of coal Chances of clinker formation Risk of explosion Requirement of large volume combustion chamber Incomplete combustion of coal Chances of clinker formation Risk of explosion Requirement of large volume combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture That present in volatile matters The total quantity of carbon present in the coal The one which is present in the residue after combustion Hundred minus the percentage of volatile matter, ash and moisture That present in volatile matters The total quantity of carbon present in the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following can be made into briquettes without the use of a binder? Anthracite coal None of these Lignite Bituminous coal Anthracite coal None of these Lignite Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Alphatic compounds Olefins Aromatic compounds Paraffins Alphatic compounds Olefins Aromatic compounds Paraffins ANSWER DOWNLOAD EXAMIANS APP
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