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Galvanic corrosion cannot be prevented by

A. Cathodic protection

B. Anodic protection

C. Usage of largest possible anodic area

D. Any one of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Which of the following is not a characteristic observed in material failure by fatigue fracture?
  2. Which of the following is not an explosive?
  3. The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
  4. Coating provided on the electrodes used in the arc welding is not expected to
  5. Out of the following, the alloy which has equal percentage of constituents, is
  6. Consideration of the creep is the most important in case of the
  7. Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
  8. Brazing filler metal used for joining steel plates
  9. In condensers used in thermal power plants, steam is normally used in shell side and cooling water on…
  10. Pick out the wrong statement about the machinability of metals. Machinability of a metal
  11. Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
  12. Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
  13. For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
  14. Fatigue limit improvement by over stressing the metal by successively increasing the load is called…
  15. The specific gravity of coal depends mainly on its __________ content.
  16. An abrupt and sudden fall in the reading of barometer is an indication of the
  17. Which of the following are considered applications of ultrasonic testing?
  18. The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters…
  19. Maximum permissible sulphur content in steel is __________ percent.
  20. Which of the following low melting alloy containing bismuth and lead is used for electric fuse?
  21. Principal alloying element in Elinvar (used for making hair springs for watches) is
  22. Magnetic permeability of iron is increased by its
  23. Which of the following is not a ferromagnetic material?
  24. Pick out the wrong statement.
  25. A material subjected __________ must have high resilience.
  26. Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
  27. Addition of __________ to steel does not help in improving its machinability.
  28. Drills are usually made of
  29. Pick out the wrong statement.
  30. CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because…