Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area Does not vary with increase in surface area Is accelerated by storage in large heaps with small surface to volume ratio Is more for low volatile coal compared to high volatile coal Decreases with increase in surface area Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Thickness of plastic layer Caking index Swelling index Gray-king index Thickness of plastic layer Caking index Swelling index Gray-king index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion (64-132) rank coal (ASTM) means a coal with 64% None of these Fixed carbon and a heating value of 132 BTU/1b Fixed carbon and having a heat value of 13, 200 BTU/1b Ash and a heating value of 13, 200 BTU/1b None of these Fixed carbon and a heating value of 132 BTU/1b Fixed carbon and having a heat value of 13, 200 BTU/1b Ash and a heating value of 13, 200 BTU/1b ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Safe condition for storage of high V.M. bituminous coal is that Height of the coal heap should be < 3 metres Neither A nor B Maximum 200 tons should be stored in a heap Both A and B Height of the coal heap should be < 3 metres Neither A nor B Maximum 200 tons should be stored in a heap Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have High volatile matter content Low fusion point of ash High caking index Very low ash content (8-10%) High volatile matter content Low fusion point of ash High caking index Very low ash content (8-10%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following, which is the most important parameter for the blast furnace grade coke? Volatile matter content CSR & CRI Moisture content Ash content Volatile matter content CSR & CRI Moisture content Ash content ANSWER DOWNLOAD EXAMIANS APP
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