JSW_boilerCombustion_Post JSW_Boiler Combustion_ILT_Post Assessment JSW_Boiler Combustion_ILT_Post Assessment The number of attempts remaining is 2 1 / 20 1. The most commonly used combustion system (Fuel Firing) in India for the thermal power plant boiler is the _______________ Combustion system. a. Travelling grate stoker firing b. Pulverized fuel c. Circulating fluidized bed d. Fluidized bed 2 / 20 2. Methane's combustion can be represented as follows: CH4 +2O2 = CO2 + 2H2O , 23 kg of CH4 generate How much kg CO2 Stoichiometrically after combustion. (Rounded off) a. 63 b. 44 c. 92 d. 64 3 / 20 3. Heat Transferred in Boiler , Inside combustor is utilize through which of the following mode of heat transfer? a. All of the above b. Convection Mode c. Conduction Mode d. Radiation Mode 4 / 20 4. What is Purpose of Excess air…….. (Select most relevant answer) a. To create turbulence b. To ensure complete combustion c. Not At all required in practical condition d. To dilute average temp of Flue gas 5 / 20 5. Which Type of Coal is having Highest Gross Calorific Value? a. Subbituminous b. Bituminous c. Brown coal d. Lignite 6 / 20 6. What is 3T (TTT) , which is very important in Combustion context a. Time , Temperature & Trash b. Time , Temperature &Titration c. Time , Temperature & Turbulence d. Temperature , Turbulence & Temperature 7 / 20 7. Which Chemical reaction result in to highest release of Heat out of Following : a. S + O2 = SO2……… ……….. Per kg of Sulphur b. H2+ (1/2) O2 = H2O……… ……….. Per kg of Hydrogen c. 2C +O2= 2CO……… ……….. Per kg of Carbon d. C+ O2 = CO2 ……… ……….. Per kg of Carbon 8 / 20 8. Which gas not generate out of combustion ? a. SiO2 b. SO2 c. CO2 d. NO2 9 / 20 9. Which Fuel Contain Highest Moisture (%) a. Bituminous b. Anthracite c. Lignite d. Subbituminous 10 / 20 10. Higher the mesh size lower the size of particle that can pass through it ? a. True b. False 11 / 20 11. Which of the following fuel utilized Burner for combustion? a. All of the above b. Gaseous Fuel c. Pulverized Coal d. Liquid Fuel 12 / 20 12. Methane's combustion can be represented as follows: CH4 +2O2 = CO2 + 2H2O , 32 kg of CH4 Required How much kg O2 Stoichiometrically after combustion. (Note : Molecular Weight of reaction component Already Provided above can be use) a. 64 b. 88 c. 128 d. 44 13 / 20 13. Clinker Formation is Dependent on which of the following property a. Ash Diffusion Temp b. Flash Point c. Ash Fusion Temperature d. Hardgrove Index 14 / 20 14. Lignite Contain _____ to _____ % Fixed Carbon a. 60-72% b. 95-98% c. 90%-95% d. 30-40% 15 / 20 15. It is generally observed that, higher the molecular weight higher the Specific heat ,Then which of the following gases have Lowest Specific Heat…. Molecular Weight is as listed Below , H2= 2 kg/Kmole , S = 32 kg/Kmole , O= 16 kg/Kmole , C = 12 kg/Mole a. H2O b. H2 c. CO2 d. SO2 16 / 20 16. Higher the Combustion efficiency, Lower will be the Overall Heat rate keeping other parameter constant. a. True b. False 17 / 20 17. Radiation Heat transfer is directly proportion to temperature difference (Supplying & Receiving Surface) in the power of …………… a. T^1 b. T^5.67 c. T^4 d. T^1.25 18 / 20 18. On heating of pulverized coal sample in presence of air, Which entrapped thing inside the coal losses at 100-120 Deg Cel…………. a. Ethane b. Methane & Ethane c. Moisture d. Methane 19 / 20 19. In an ideal gas mixture, all the gases are ideal gases and they obey this equation of state given by a. pVM=RT b. pM=VRT c. pV=RTt d. pV = MRT 20 / 20 20. To Control Sox Level ,Which APCD (Air Pollution Control Device) is required to install. a. CFD b. FGD c. MFT d. Catalystic Convertor Your score is
