Fuels and Combustion Narrow coke ovens as compared to wider coke ovens Produce stronger coke All of these Produce smaller coke Require less time of carbonisation Produce stronger coke All of these Produce smaller coke Require less time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of coal Partial combustion of large size (< 50 mm) coke High pressure gasification of coal (e.g. in Lurgi gasifier) 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 Sulphur in metallurgical coal Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Neither A nor B Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of Pulverised coal in boilers Less air for combustion Correct amount of air for combustion Too much air for combustion Pulverised coal in boilers Less air for combustion Correct amount of air for combustion Too much air for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Desirable "Micum Index" values of metal-lurical coke are M40 > 98% and M10 < 2% M40 > 78% and M10 < 10% M40 > 4% and M10 < 80% M40 > 10% and M10 < 78% M40 > 98% and M10 < 2% M40 > 78% and M10 < 10% M40 > 4% and M10 < 80% M40 > 10% and M10 < 78% ANSWER DOWNLOAD EXAMIANS APP
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