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