Fuels and Combustion Fussain Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal All of these Is friable, charcoal like substance Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal All of these Is friable, charcoal like substance ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the Mixing with blast furnace gas Coke oven battery heating Steel ladle drying Hot scarfing of steel slabs Mixing with blast furnace gas Coke oven battery heating Steel ladle drying Hot scarfing of steel slabs ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the All of these Increase in gas pressure Increase in temperature (i.e. preheating) Use of pure oxygen for combustion instead of air All of these Increase in gas pressure Increase in temperature (i.e. preheating) Use of pure oxygen for combustion instead of air ANSWER DOWNLOAD EXAMIANS APP
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 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The hottest part of the flame lies in its____zone. Non-luminous Unburnt gases Yellow Luminous Non-luminous Unburnt gases Yellow Luminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 750 1100 500 950 750 1100 500 950 ANSWER DOWNLOAD EXAMIANS APP
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