Fuels and Combustion Spontaneous combustion of coal on storage results due to Inadequate ventilation All of these Storage in large heaps with small surface to volume ratio Low temperature oxidation Inadequate ventilation All of these Storage in large heaps with small surface to volume ratio Low temperature oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having Higher carbon monoxide content Lower carbon dioxide content None of these Higher methane content and thus higher calorific value Higher carbon monoxide content Lower carbon dioxide content None of these Higher methane content and thus higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame velocity? CO C₂H₆ H₂ CH₄ CO C₂H₆ H₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following, which is the most important parameter for the blast furnace grade coke? CSR & CRI Ash content Moisture content Volatile matter content CSR & CRI Ash content Moisture content Volatile matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that No excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion No excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place 21% excess air has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C/H ratio is the maximum in case of Coal Natural gas Furnace oil Naphtha Coal Natural gas Furnace oil Naphtha ANSWER DOWNLOAD EXAMIANS APP
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