JSW_postassessment_Metallurgy JSW_Boiler Metallurgy_ILT_ Post Assessment JSW_Boiler Metallurgy_ILT_ Post Assessment The number of attempts remaining is 2 1 / 20 1. Waterwall of boiler is made up of which material a. Copper b. Alluminimum c. Cast iron d. Steel 2 / 20 2. Which Failure mechanism of boiler tube is Related to High Temp ________ . a. Fatigue b. Flow Accelerated Corrosion c. Creep d. Stress Corrosion Cracking 3 / 20 3. Post weld Heating is Required to ________________ a. Relieve Stress b. Implant Stress c. Divert Stress d. induce Stress 4 / 20 4. Safe-life design relies on _______ a. Load sharing b. Factor of safety c. Designer d. Crack propagation 5 / 20 5. What is Correct Nomenclature for identify for Tube or Pipe is correct? a. ID x Thickness for Pipe b. OD for pipe c. OD x Thickness for Tube d. ID for tube 6 / 20 6. On which cycle does a modern thermal power plant operate? a. Carnot cycle b. Rankine cycle c. Brayton cycle d. Otto cycle 7 / 20 7. Which material is recommonded out of given tube for Economizer ? a. SA 599 b. SA 105 c. SA 213 T91 d. SA 210 GrA1 8 / 20 8. Which of the following elements were responsible for failure of the Titanic ship? Hint …..The steel used in the hull was high in sulfur, phosphorus In the freezing -2°C Atlantic waters, this caused a "ductile-to-brittle transition," meaning the metal shattered like glass upon impact instead of bending or deforming. a. High Mn b. High S, P c. Low Si d. Low S, P 9 / 20 9. Which alloying element improve corrosion Resistance property of carbon steel ? a. Niobium b. Phosphrus c. Chromium d. Suphur 10 / 20 10. Ductility of a material is defined as its ability to undergo significant permanent deformation in ______________ a. Torsion b. Shear c. Compression d. Tension 11 / 20 11. What is irrelevant to Boiler Metallurgy a. Packing of Steel b. Microstructure of steel c. Alloying of steel d. Grade of Steel 12 / 20 12. With the reduction in the mean stress, the fatigue limit of the material a. None of the above b. Increases c. Decreases d. Stabilizes 13 / 20 13. Super Heater / Re heater tube of boiler is made up of which material a. Copper b. AlloySteel c. Cast iron d. Wrought Iron 14 / 20 14. Which of the following is not a mechanical property of Material a. Electrical Condutivity b. Hardness c. Toughness d. Stiffness 15 / 20 15. Which one of the following is iron impurities ? a. Vanadium b. Carbon c. gold d. Sulphur 16 / 20 16. Which tube `s design temp is Lowest of all option a. Alloy Steel T91 b. Alloy Steel T22 c. Alloy Steel T1 d. Cabnon Steel 17 / 20 17. Which part of Boiler operate under highest Fluegas Temp a. feed Water Heater b. Super Heater c. Air Preheater d. Ecomonizer 18 / 20 18. What is RLA in cotext of Indian Boiler Regulation a. Residual life Assesment b. Remnant Life Assesment c. Relieved Life Aggresion d. Remaining Life Assesment 19 / 20 19. The Purpose of Heat Treatment is _____________________ a. To change the internal structure of steel b. To change appearnce of the Component c. To change the mechanical propoperties of steel d. To Change Chemical composition of steel 20 / 20 20. HAZ is related ________________- a. Chipping b. Welding c. Cutting d. Joining Your score is