Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 550 950 1150 750 550 950 1150 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Critical Air Blast (CAB) value of coke is a direct measure of its Reactivity Hardness Strength None of these Reactivity Hardness Strength None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Caking power Both A & B Calorific value Neither A nor B Caking power Both A & B Calorific value Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 18 12 24 6 18 12 24 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced. Volatile matter Colour Ash content Moisture content Volatile matter Colour Ash content Moisture content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. None of these Ash Moisture Sulphur & phosphorus None of these Ash Moisture Sulphur & phosphorus ANSWER DOWNLOAD EXAMIANS APP
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