Fuels and Combustion Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr. 0.5 10 20 2.5 0.5 10 20 2.5 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 Requirement of large volume combustion chamber Risk of explosion Incomplete combustion of coal Chances of clinker formation Requirement of large volume combustion chamber Risk of explosion Incomplete combustion of coal Chances of clinker formation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ has the widest inflammability limit (explosion limit) of all the gases. Methane Hydrogen Carbon monoxide Acetylene Methane Hydrogen Carbon monoxide Acetylene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of blast furnace gas is CO CO₂ H₂ N₂ CO CO₂ H₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Sulphur & phosphorus None of these Ash Moisture Sulphur & phosphorus None of these Ash Moisture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Fat' coal means a coal having Non smoking tendency Low calorific value Low ash content High volatile matter Non smoking tendency Low calorific value Low ash content High volatile matter ANSWER DOWNLOAD EXAMIANS APP
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