Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 36 28 18 6 36 28 18 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Catalyst used in Fischer-Tropsch process is Alumina Zinc oxide Thorium oxide Nickel Alumina Zinc oxide Thorium oxide Nickel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? None of these It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers It can not burn low grade coal None of these It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers It can not burn low grade coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? Excessive fly-ash discharge from the stack Erosion of induced draft fan blades Ash disposal problem High power consumption in its transportation Excessive fly-ash discharge from the stack Erosion of induced draft fan blades Ash disposal problem High power consumption in its transportation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Decrease Increase May increase or decrease ; depends on the quantity of products of combustion Remain unchanged Decrease Increase May increase or decrease ; depends on the quantity of products of combustion Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C. 200-300 250-270 80-170 280-300 200-300 250-270 80-170 280-300 ANSWER DOWNLOAD EXAMIANS APP
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