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