Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Decrease May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter content (M) and ash content (A) in coal are approximately related as M = 1.5A M = A M = 1.1A M = 2A M = 1.5A M = A M = 1.1A M = 2A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 12 18 24 6 12 18 24 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Proper fuel preparation Adopting efficient-fuel firing technique & equipment Keeping the flue gas exhaust temperature very high Supplying correct quantity of combustion air Proper fuel preparation Adopting efficient-fuel firing technique & equipment Keeping the flue gas exhaust temperature very high Supplying correct quantity of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Sub-bituminous Bituminous Semi-anthracite Lignite Sub-bituminous Bituminous Semi-anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Bituminous coal High temperature coke (V.M < 0.5%) Lignite Anthracite Bituminous coal High temperature coke (V.M < 0.5%) Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
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