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