JSW_Boiler_Metallurgy_pre JSW_Boiler Metallurgy_ILT_Pre Assessment JSW_Boiler Metallurgy_ILT_Pre Assessment The number of attempts remaining is 1 1 / 20 1. What is Unit of Stress ? a. % b. N/ mm^2 c. mBar d. J/m^3 2 / 20 2. Welding Create _____________Stresses in material a. tortional Strain b. Shear Stress c. Compressive stress d. Resudual Stress 3 / 20 3. Which regulation is applicable for Boiler in India a. IRB 1923 b. IBR 1950 c. CBB d. ASME 4 / 20 4. In a thermal power station, the main component used for heat addition in working Fluid a. Condenser b. Boiler c. Turbine d. Compressor 5 / 20 5. Which of the following is not damage mechanism persist in Boiler tube failure a. Erosion b. Corrosion c. Fatigue d. Freezing 6 / 20 6. The most commonly used combustion system in india for the thermal power plant boiler is the _______________ Combustion system. a. Circulating fluidised bed b. Pulverised fuel c. Travelling grate stoker firing d. Fluidised bed 7 / 20 7. The tendency of brittle fracture increases with a. Does not depend on the strain rate and temperature b. Decrease in strain rate c. Decreasing temperature d. Increasing temperature 8 / 20 8. What is Meaning of quenching in Heat treatment a. Cooling of steel b. Re heating of steel c. Heating of Steel d. Thinning of Steel 9 / 20 9. Steel is Which Type of material ? a. Ferrous Material b. non ferrous Material c. Plastic Material d. Polymeric Material 10 / 20 10. Waterwall of boiler is made up of which material a. Alluminium b. Copper c. Steel d. Cast iron 11 / 20 11. Which component is not part of the Boiler System a. Deaerator b. Economizer c. Attemperator d. Drain Header 12 / 20 12. What is operating Temp of main steam in your plant ? (select most Suitable Ans) a. 420 deg Cel b. 553 Deg Cel c. 704 Deg Cel d. 535 Deg Cel 13 / 20 13. Rubber is __________ elastic than Steel a. Less b. Equal c. Non of the above d. More 14 / 20 14. Corrosion Process is ___________________ eaten away of material. a. Electrical b. Mechanical c. Chemical d. Electro-Chemical 15 / 20 15. Which Failure mechanism of material failure is related to cyclic stress ? a. Erosion b. Plastic deformation c. Fatigue d. Corrosion 16 / 20 16. Steel rule is made of ____________ a. Zinc b. Cast iron c. Stainless steel d. Brass 17 / 20 17. Boiler Metallurgy is dealing with a. Microstructure b. Alloying Element c. All of the above d. Material 18 / 20 18. Which property is considered the opposite of ductility famously? a. Brittleness b. Toughness c. Hardness d. Malleability 19 / 20 19. Which technique is not included in a Non Destructive Examination/ Testing a. Tensile testing b. Radiography Testing c. Ultrasonic Testing d. Dye Penetrant testing 20 / 20 20. Which of the following is not a failure mechanism of Boiler Tube Leakage a. Hot Shortness b. Vibration Fatigue c. Stress Corrosion fatigue d. Hydrogen Embrittlement Your score is