Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 0.1 10 2 5 0.1 10 2 5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Does not alter its calorific value Decreases its calorific value Increases its calorific value Is not possible on commerical scale Does not alter its calorific value Decreases its calorific value Increases its calorific value Is not possible on commerical scale 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 >71% In between 37 & 71% < 37% None of these >71% In between 37 & 71% < 37% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its Emissivity factor is higher Flue gas has lower dew point thereby facilitating more waste heat recovery All of these Sulphur content is lower Emissivity factor is higher Flue gas has lower dew point thereby facilitating more waste heat recovery All of these Sulphur content is lower ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ prohibits the use of alcohols directly in petrol engines. Low octane number Low calorific value High cost & availability Low flash point Low octane number Low calorific value High cost & availability Low flash point ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content in coking coal may be about __________ percent. 46 22 1 7 46 22 1 7 ANSWER DOWNLOAD EXAMIANS APP
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