Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Anthracite Lignite Bituminous coal High temperature coke (V.M < 0.5%) Anthracite Lignite Bituminous coal High temperature coke (V.M < 0.5%) ANSWER DOWNLOAD EXAMIANS APP
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. 750 950 550 1150 750 950 550 1150 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 None of these Higher carbon monoxide content Higher methane content and thus higher calorific value Lower carbon dioxide content None of these Higher carbon monoxide content Higher methane content and thus higher calorific value Lower carbon dioxide content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following coke has the least percentage of ash? Petroleum coke Foundary coke Beehive coke Metallurgical coke Petroleum coke Foundary coke Beehive coke Metallurgical coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Oxidation Gasification Carbonisation Coalification Oxidation Gasification Carbonisation Coalification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is unsuitable fuel for producer gas manufacture? Coal having high fusion point of its ash Coke Coal having low fusion point of its ash Anthracite Coal having high fusion point of its ash Coke Coal having low fusion point of its ash Anthracite ANSWER DOWNLOAD EXAMIANS APP