Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Natural gas Gobar gas LPG Carburetted water gas Natural gas Gobar gas LPG Carburetted water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker. 1100 1400 1250 1350 1100 1400 1250 1350 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Mineral matter Adhering impurities Both B and C Inherent impurities Mineral matter Adhering impurities Both B and C Inherent impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal All of these Tar yield is less but free carbon in tar is more Coke oven gas yield is more Calorific value of coke oven gas is less All of these Tar yield is less but free carbon in tar is more Coke oven gas yield is more Calorific value of coke oven gas is less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the Gas yield is less Tar yield is more Aromatic content of tar produced is more Ignition temperature of coke produced is less Gas yield is less Tar yield is more Aromatic content of tar produced is more Ignition temperature of coke produced is less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent. None of these In between 37 & 71% >71% < 37% None of these In between 37 & 71% >71% < 37% ANSWER DOWNLOAD EXAMIANS APP
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