Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Increases the loss of fine coal dust from the ovens when charging Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Laboratory gas is obtained by the cracking of Gasoline Fuel oil Kerosene Diesel Gasoline Fuel oil Kerosene Diesel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 50 1000 10000 5000 50 1000 10000 5000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituent of natural gas is CH₄ (upto 90%) C₃H₈ C₂H₆ H₂ CH₄ (upto 90%) C₃H₈ C₂H₆ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of producer gas is around __________ kcal/Nm³ 1300 9000 4500 500 1300 9000 4500 500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 2 10 5 0.1 2 10 5 0.1 ANSWER DOWNLOAD EXAMIANS APP
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