Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter can be used to determine the __________ of the coal. Calorific value Neither A nor B Sulphur content Both A & B Calorific value Neither A nor B Sulphur content Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard coke is manufactured from Anthracite Bituminous coal Semi-anthracite Lignite Anthracite Bituminous coal Semi-anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. Higher than Same as Not related to Lower than Higher than Same as Not related to Lower than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between gross and net calorific value will be minimum in case of Natural gas Water gas Coke oven gas Blast furnace gas Natural gas Water gas Coke oven gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cuprous chloride used in orsat apparatus can absorb Both CO and O₂ Both CO and CO₂ Only CO All of these Both CO and O₂ Both CO and CO₂ Only CO All of these ANSWER DOWNLOAD EXAMIANS APP
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