Fuels and Combustion Yield of pitch from distillation of high temperature tar is around __________ percent. 65 90 25 10 65 90 25 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Risk of explosion Incomplete combustion of coal Chances of clinker formation Requirement of large volume combustion chamber Risk of explosion Incomplete combustion of coal Chances of clinker formation Requirement of large volume combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) Remains constant Decreases None of these Increases Remains constant Decreases None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if It is stored in tall heaps All of these Smaller fines are stored in large quantity It contains large amount of volatile matter It is stored in tall heaps All of these Smaller fines are stored in large quantity It contains large amount of volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Decreases Either A or B, depends on other factors Remains same Increases Decreases Either A or B, depends on other factors Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? It can not burn low grade coal It achieves higher fuel combustion efficiency None of these Less heat transfer surface area is required in boilers It can not burn low grade coal It achieves higher fuel combustion efficiency None of these Less heat transfer surface area is required in boilers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS