Fuels and Combustion Which of the following petrographic constituents of coal is non-coking? Vitrain Durain Fussain Clarain Vitrain Durain Fussain Clarain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have high porosity Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have high porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind? 70 85 50 100 70 85 50 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke made in narrower by-product coke ovens (as compared to wider ovens) is Less reactive Stronger All of these Smaller in size Less reactive Stronger All of these Smaller in size ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm³. 30, 000 3000 300 30 30, 000 3000 300 30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal is accelerated by the Storage in large heaps All of these Storage in compressed piles Absence of porous or friable particles Storage in large heaps All of these Storage in compressed piles Absence of porous or friable particles ANSWER DOWNLOAD EXAMIANS APP
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