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Thermit welding uses the following energy source.

A. Electrical energy

B. Chemical energy

C. Energy of high velocity electrons

D. Heat generated by friction

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

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  14. Which of the following relationships is correct for relating the three elastic constants of an isotropic…
  15. Addition of __________ to steel does not help in improving its machinability.
  16. Recrystallisation temperature of steel is __________ °C.
  17. On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate…
  18. Which of the following hardness tests does not measure the indentation hardness of metals and alloys?
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  21. Out of the following __________ iron has the best capability to bear sudden & excessive shocks.
  22. Which of the following is a commonly used manometric liquid for low pressure range?
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  24. Fatigue limit improvement by over stressing the metal by successively increasing the load is called…
  25. The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
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