Fuels and Combustion Out of the following fuels, the difference between gross and net calorific value will be minimum in case of Natural gas Coke oven gas Blast furnace gas Water gas Natural gas Coke oven gas Blast furnace gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal is most disadvantageous during Handling (e.g. when emptying wagons) Its pulverisation (as it requires more power) None of these Combustion of fire slacks on the grates Handling (e.g. when emptying wagons) Its pulverisation (as it requires more power) None of these Combustion of fire slacks on the grates ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Keeping the flue gas exhaust temperature very high Adopting efficient-fuel firing technique & equipment Supplying correct quantity of combustion air Proper fuel preparation Keeping the flue gas exhaust temperature very high Adopting efficient-fuel firing technique & equipment Supplying correct quantity of combustion air Proper fuel preparation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. 25-30 60-65 95-100 3-5 25-30 60-65 95-100 3-5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas from the heating chamber of byproduct coke ovens is removed by Induced draft fan Forced draft fan Steam ejector Natural draft Induced draft fan Forced draft fan Steam ejector Natural draft ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Producer gas containing least amount of tar is produced by the Partial combustion of coal High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of large size (< 50 mm) coke Partial combustion of coal High pressure gasification of coal (e.g. in Lurgi gasifier) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier) Partial combustion of large size (< 50 mm) coke ANSWER DOWNLOAD EXAMIANS APP
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