Fuels and Combustion Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher Sulphur content Calorific value Higher C/H ratio Difference in gross & net calorific value Sulphur content Calorific value Higher C/H ratio Difference in gross & net calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is unsuitable fuel for producer gas manufacture? Coal having high fusion point of its ash Coal having low fusion point of its ash Anthracite Coke Coal having high fusion point of its ash Coal having low fusion point of its ash Anthracite Coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between the net and gross calorific value is maximum in case of Fuel oil Blast furnace gas Pitch Bituminous coal Fuel oil Blast furnace gas Pitch Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Supply of excess air for complete combustion of fuel is necessitated to facilitate Attainment of chemical equilibrium None of these Attainment of high temperature Its thorough mixing with air Attainment of chemical equilibrium None of these Attainment of high temperature Its thorough mixing with air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal Comes from protein in parent vegetable matter All of these Is present upto 1-2% Is recovered as ammonia during its carbonisation Comes from protein in parent vegetable matter All of these Is present upto 1-2% Is recovered as ammonia during its carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Oxygen enrichment of combustion air Controlling the excess air Maintaining proper draft in the furnace Using low c.v. fuels Oxygen enrichment of combustion air Controlling the excess air Maintaining proper draft in the furnace Using low c.v. fuels ANSWER DOWNLOAD EXAMIANS APP
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