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