Fuels and Combustion In flue gas analysis by Orsat's apparatus, carbon dioxide is absorbed by Dilute potassium carbonate Potassium hydroxide Alkaline pyragllol solution Cuporus chloride Dilute potassium carbonate Potassium hydroxide Alkaline pyragllol solution Cuporus chloride ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Maintaining proper draft in the furnace Controlling the excess air Oxygen enrichment of combustion air Using low c.v. fuels Maintaining proper draft in the furnace Controlling the excess air Oxygen enrichment of combustion air Using low c.v. fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Rate of low temperature oxidation of coal due to bad storage conditions Decreases 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 Does not vary with increase in surface area Decreases 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 Does not vary with increase in surface area ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Purity of coke means that, it is high in carbon and low in Ash Moisture Volatiles Iron Ash Moisture Volatiles Iron ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion By-products are __________ recovered in 'Beehive ovens'. Negligibly Partially Not at all Fully Negligibly Partially Not at all Fully ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having Higher carbon monoxide content Lower carbon dioxide content None of these Higher methane content and thus higher calorific value Higher carbon monoxide content Lower carbon dioxide content None of these Higher methane content and thus higher calorific value ANSWER DOWNLOAD EXAMIANS APP
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