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. Post weld Heating is Required to ________________ a. Relieve Stress b. Divert Stress c. Implant Stress d. induce Stress 2 / 20 2. What is irrelevant to Boiler Metallurgy a. Packing of Steel b. Microstructure of steel c. Alloying of steel d. Grade of Steel 3 / 20 3. With the reduction in the mean stress, the fatigue limit of the material a. None of the above b. Decreases c. Stabilizes d. Increases 4 / 20 4. Which one of the following is iron impurities ? a. Vanadium b. Carbon c. gold d. Sulphur 5 / 20 5. On which cycle does a modern thermal power plant operate? a. Carnot cycle b. Otto cycle c. Brayton cycle d. Rankine cycle 6 / 20 6. Super Heater / Re heater tube of boiler is made up of which material a. Cast iron b. AlloySteel c. Wrought Iron d. Copper 7 / 20 7. 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 8 / 20 8. Safe-life design relies on _______ a. Crack propagation b. Load sharing c. Factor of safety d. Designer 9 / 20 9. Which Failure mechanism of boiler tube is Related to High Temp ________ . a. Fatigue b. Creep c. Stress Corrosion Cracking d. Flow Accelerated Corrosion 10 / 20 10. HAZ is related ________________- a. Welding b. Joining c. Cutting d. Chipping 11 / 20 11. 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. Low Si b. High S, P c. High Mn d. Low S, P 12 / 20 12. Which part of Boiler operate under highest Fluegas Temp a. feed Water Heater b. Air Preheater c. Ecomonizer d. Super Heater 13 / 20 13. Which material is recommonded out of given tube for Economizer ? a. SA 213 T91 b. SA 105 c. SA 599 d. SA 210 GrA1 14 / 20 14. What is Correct Nomenclature for identify for Tube or Pipe is correct? a. OD x Thickness for Tube b. ID x Thickness for Pipe c. ID for tube d. OD for pipe 15 / 20 15. Ductility of a material is defined as its ability to undergo significant permanent deformation in ______________ a. Tension b. Shear c. Torsion d. Compression 16 / 20 16. Which of the following is not a mechanical property of Material a. Stiffness b. Hardness c. Electrical Condutivity d. Toughness 17 / 20 17. What is RLA in cotext of Indian Boiler Regulation a. Remnant Life Assesment b. Residual life Assesment c. Remaining Life Assesment d. Relieved Life Aggresion 18 / 20 18. Which alloying element improve corrosion Resistance property of carbon steel ? a. Niobium b. Phosphrus c. Chromium d. Suphur 19 / 20 19. Waterwall of boiler is made up of which material a. Steel b. Alluminimum c. Cast iron d. Copper 20 / 20 20. Which tube `s design temp is Lowest of all option a. Cabnon Steel b. Alloy Steel T1 c. Alloy Steel T22 d. Alloy Steel T91 Your score is