Fuels and Combustion Naphthalene recovered from coke oven gas is used For making electrodes As moisture proof coating on fibres As moth balls (insecticides) As a fuel in furnaces For making electrodes As moisture proof coating on fibres As moth balls (insecticides) As a fuel in furnaces ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For long flame and easy ignition, the coal used should have High ash Low ash High volatile matter High calorific value High ash Low ash High volatile matter High calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it Gives smokeless burning Burns completely Shows little or no fusing action None of these Gives smokeless burning Burns completely Shows little or no fusing action None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The hottest part of the flame lies in its____zone. Yellow Unburnt gases Luminous Non-luminous Yellow Unburnt gases Luminous Non-luminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Free impurities Ash Volatile matter Inherent mineral matter Free impurities Ash Volatile matter Inherent mineral matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is removed from coke oven gas by Absorbing in vetro-coke solution Adsorbing on bog iron bed None of these Scrubbing with wash oil (a petroleum product) Absorbing in vetro-coke solution Adsorbing on bog iron bed None of these Scrubbing with wash oil (a petroleum product) ANSWER DOWNLOAD EXAMIANS APP
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