Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

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

You can do it
  1. Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
  2. Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
  3. In condensers used in thermal power plants, steam is normally used in shell side and cooling water on…
  4. Surface tension of a liquid
  5. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
  6. On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate…
  7. Stellite is a __________ material.
  8. Propulsion of rocket follows from the
  9. Chromium molybdenum steel cannot be welded using __________ welding.
  10. The most suitable material for die casting is
  11. Pick out the correct statement.
  12. The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume :…
  13. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used.…
  14. The process of removal of scale formed during hot rolling of steel is termed as
  15. Projection welding & stud welding is categorised as the __________ welding.
  16. Minimum number of members required to form a Public Limited Joint Stock Com-pany is
  17. Eutectoid composition of carbon steel at room temperature is
  18. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
  19. The normal stress is the same in all directions at a point in a fluid, only when the fluid
  20. Which of the following has the highest value of refractive index?
  21. A material being tested for endurance strength is subjected to the __________ load.
  22. The following type of bonding is strongly directional in solids.
  23. On being hit with a hammer, __________ will readily fracture.
  24. Fire in fuel gas pipelines is extinguished most effectively by
  25. __________ remains constant during the adiabatic cooling of moist air.
  26. __________ is the hardest material out of the following.
  27. Closeness of packing is maximum in case of __________ crystal lattice.
  28. Dislocations are __________ defects.
  29. 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
  30. __________ is the most suitable lubricant for drawing mild steel wires?