Fuels and Combustion Mott and Wheeler test is conducted on coke to find its Volatile matter content Phosphorus content Abradability Reactivity with O₂ Volatile matter content Phosphorus content Abradability Reactivity with O₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High ash containing coke Has poor strength and abrasion resistance Produces more slag when used in the blast furnace None of these Is desirable in producer gas manufacture Has poor strength and abrasion resistance Produces more slag when used in the blast furnace None of these Is desirable in producer gas manufacture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Bituminous coal Coke Semi-bituminous coal Aanthracite Bituminous coal Coke Semi-bituminous coal Aanthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler? Unburnt carbon in flue gases Incomplete combustion Flue gases Ash content in the fuel Unburnt carbon in flue gases Incomplete combustion Flue gases Ash content in the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Decreases with increase in surface area Is more for low volatile coal compared to high volatile coal Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Supply of excess air for complete combustion of fuel is necessitated to facilitate None of these Attainment of chemical equilibrium Its thorough mixing with air Attainment of high temperature None of these Attainment of chemical equilibrium Its thorough mixing with air Attainment of high temperature ANSWER DOWNLOAD EXAMIANS APP
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