Fuels and Combustion Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces Higher amount of methane Higher amount of both methane and hydrogen Both A & B Lower amount of hydrogen Higher amount of methane Higher amount of both methane and hydrogen Both A & B Lower amount of hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms. 5 to 15 1 to 2 3 to 4 20 to 40 5 to 15 1 to 2 3 to 4 20 to 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Clinkering tendency Coking tendency Size stability Caking tendency Clinkering tendency Coking tendency Size stability Caking tendency ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Hydrogen percentage in the coke oven gas decreases Tar yield increases Methane percentage in the coke oven gas increases Coke even gas yield increases Hydrogen percentage in the coke oven gas decreases Tar yield increases Methane percentage in the coke oven gas increases Coke even gas yield increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Calorific value of the fuel Scale losses of the furnace stock None of these Flame temperature Calorific value of the fuel Scale losses of the furnace stock None of these Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Bag filter Wet scrubber Multicyclones Hydrocyclones Bag filter Wet scrubber Multicyclones Hydrocyclones ANSWER DOWNLOAD EXAMIANS APP
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