Fuels and Combustion Assam coals suffers mainly from the disadvantage of high __________ content. Volatile matter Ash Moisture Sulphur (4-6%) Volatile matter Ash Moisture Sulphur (4-6%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in Shallow and small piles Fine sizes without the presence of any lump Large heaps with small surface to volume ratio Closed space without any ventilation facility Shallow and small piles Fine sizes without the presence of any lump Large heaps with small surface to volume ratio Closed space without any ventilation facility ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following combustibles is absent in blast furnace gas? H₂ CH₄ CO None of these H₂ CH₄ CO None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Decreases its calorific value Increases its calorific value Does not alter its calorific value Is not possible on commerical scale Decreases its calorific value Increases its calorific value Does not alter its calorific value Is not possible on commerical scale ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces Higher amount of both methane and hydrogen Higher amount of methane Both A & B Lower amount of hydrogen Higher amount of both methane and hydrogen Higher amount of methane Both A & B Lower amount of hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Is non-coking Contains more than 90% durain Contains mainly vitrain & clarain and is generally coking Contains more than 90% fussain Is non-coking Contains more than 90% durain Contains mainly vitrain & clarain and is generally coking Contains more than 90% fussain ANSWER DOWNLOAD EXAMIANS APP
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