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. Lignite Contain _____ to _____ % Fixed Carbon a. 60-72% b. 30-40% c. 95-98% d. 90%-95% 2 / 20 2. Radiation Heat transfer is directly proportion to temperature difference (Supplying & Receiving Surface) in the power of …………… a. T^1.25 b. T^4 c. T^1 d. T^5.67 3 / 20 3. 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 4 / 20 4. Which Chemical reaction result in to highest release of Heat out of Following : a. C+ O2 = CO2 ……… ……….. Per kg of Carbon b. 2C +O2= 2CO……… ……….. Per kg of Carbon c. S + O2 = SO2……… ……….. Per kg of Sulphur d. H2+ (1/2) O2 = H2O……… ……….. Per kg of Hydrogen 5 / 20 5. 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 c. Moisture d. Methane & Ethane 6 / 20 6. The most commonly used combustion system (Fuel Firing) in India for the thermal power plant boiler is the _______________ Combustion system. a. Fluidized bed b. Pulverized fuel c. Travelling grate stoker firing d. Circulating fluidized bed 7 / 20 7. Higher the Combustion efficiency, Lower will be the Overall Heat rate keeping other parameter constant. a. False b. True 8 / 20 8. Which Fuel Contain Highest Moisture (%) a. Subbituminous b. Anthracite c. Lignite d. Bituminous 9 / 20 9. In an ideal gas mixture, all the gases are ideal gases and they obey this equation of state given by a. pM=VRT b. pV = MRT c. pVM=RT d. pV=RTt 10 / 20 10. To Control Sox Level ,Which APCD (Air Pollution Control Device) is required to install. a. MFT b. FGD c. Catalystic Convertor d. CFD 11 / 20 11. 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. 128 b. 44 c. 64 d. 88 12 / 20 12. What is Purpose of Excess air…….. (Select most relevant answer) a. To dilute average temp of Flue gas b. Not At all required in practical condition c. To ensure complete combustion d. To create turbulence 13 / 20 13. Which gas not generate out of combustion ? a. CO2 b. SiO2 c. SO2 d. NO2 14 / 20 14. 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. 64 c. 92 d. 44 15 / 20 15. Which Type of Coal is having Highest Gross Calorific Value? a. Bituminous b. Brown coal c. Lignite d. Subbituminous 16 / 20 16. Higher the mesh size lower the size of particle that can pass through it ? a. True b. False 17 / 20 17. Clinker Formation is Dependent on which of the following property a. Ash Diffusion Temp b. Hardgrove Index c. Flash Point d. Ash Fusion Temperature 18 / 20 18. Which of the following fuel utilized Burner for combustion? a. Gaseous Fuel b. Pulverized Coal c. Liquid Fuel d. All of the above 19 / 20 19. 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 20 / 20 20. What is 3T (TTT) , which is very important in Combustion context a. Time , Temperature & Turbulence b. Time , Temperature & Trash c. Temperature , Turbulence & Temperature d. Time , Temperature &Titration Your score is
