Fuels and Combustion A coal having high volatile matter content will None of these Burn with a small non-smoky flame Give less yield of tar and gas on carbonisation Have a very high calorific value None of these Burn with a small non-smoky flame Give less yield of tar and gas on carbonisation Have a very high calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 1400-1500 900-1000 400-500 1700-1800 1400-1500 900-1000 400-500 1700-1800 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Ash content Caking index Both B and C Mineral matter content Ash content Caking index Both B and C Mineral matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ? Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%). 5000 150 3500 1500 5000 150 3500 1500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Lurgi coal gasifier, Entrainment of solids is higher Low carbon conversion efficiency is achieved Larger quantity of coal can be processed Coking coals cannot be used Entrainment of solids is higher Low carbon conversion efficiency is achieved Larger quantity of coal can be processed Coking coals cannot be used ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS