Fuels and Combustion Naphthalene recovered from coke oven gas is used 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 For making electrodes As moisture proof coating on fibres ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation Produces higher quantity of gas than high temperature carbonisation Produces less quantity of tar than high temperature carbonisation Is meant for the production of 'metallurgical coke' Is mainly for producing the smokeless domestic coke Produces higher quantity of gas than high temperature carbonisation Produces less quantity of tar than high temperature carbonisation Is meant for the production of 'metallurgical coke' Is mainly for producing the smokeless domestic coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal All of these Is recovered as ammonia during its carbonisation Comes from protein in parent vegetable matter Is present upto 1-2% All of these Is recovered as ammonia during its carbonisation Comes from protein in parent vegetable matter Is present upto 1-2% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal Calorific value of coke oven gas is less All of these Coke oven gas yield is more Tar yield is less but free carbon in tar is more Calorific value of coke oven gas is less All of these Coke oven gas yield is more Tar yield is less but free carbon in tar is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Flame temperature achieved Calorific value of the fuel Heat transfer rate to the stock in the furnace Speed of combustion of fuel Flame temperature achieved Calorific value of the fuel Heat transfer rate to the stock in the furnace Speed of combustion of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High pressure coal gasification is employed in __________ process. Lurgi Winkler None of these Kopper-Totzek Lurgi Winkler None of these Kopper-Totzek ANSWER DOWNLOAD EXAMIANS APP
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