Fuels and Combustion High ash containing coke Produces more slag when used in the blast furnace Is desirable in producer gas manufacture Has poor strength and abrasion resistance None of these Produces more slag when used in the blast furnace Is desirable in producer gas manufacture Has poor strength and abrasion resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels is likely to have the highest gross calorific value? Producer gas Natural gas LPG Sewage gas Producer gas Natural gas LPG Sewage gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly caking coals Produce weak coke Both B and C May damage the coke oven walls during carbonisation Produce strong coke Produce weak coke Both B and C May damage the coke oven walls during carbonisation Produce strong coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain Both B & C CO₂ H₂O CO Both B & C CO₂ H₂O CO ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS