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