Addition of silicon to cast iron

A. Promotes graphite module formation

B. Improves its ductility

C. Does not promote graphite flakes formation

D. Increases the fluidity of molten metal

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

You can do it
  1. Use of flux during soldering is done to
  2. Propulsion of rocket follows from the
  3. Transformation range for ferrous material is the temperature interval during which __________ is formed…
  4. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
  5. Which of the following relationships is correct for relating the three elastic constants of an isotropic…
  6. Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
  7. Normalising does not __________ of a metal.
  8. Silicon crystal can be converted to p-type semiconductor by doping with
  9. Rankine cycle comprises of two isothermal and two __________ processes.
  10. __________ test can be termed as the semidestructive test.
  11. In chemical dehumidification of air
  12. The hardenability of steel decreases with
  13. The most economical channel section for the fluid flow is the one for which the discharge is maximum…
  14. In Imperial Smelting Process for extraction of zinc, zinc vapour thus produced is quenched in the external…
  15. Increase in the entropy of a system represents the
  16. Electrometallurgy is not involved in the extraction of __________ from its ore.
  17. In connection with corrosion of metals, passivation is the process that
  18. Glass reacts with
  19. Fine grained steels have
  20. Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic…
  21. __________ has the highest melting point out of the following.
  22. Shaft/rotor speed is most accurately measured by a
  23. Cast iron contains __________ percent carbon.
  24. Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
  25. Primary designation of steel is based on its
  26. Which of the following phenomenon/ phenomena is/are diffusion controlled?
  27. Out of the following the refractive index is the highest for
  28. The normal stress is the same in all directions at a point in a fluid, only when the fluid
  29. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…
  30. Hydrogen can be