Earing is a defect found in steels after the following metal working operation.

A. Extrusion

B. Rolling

C. Deep drawing

D. Wire drawing

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

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  1. __________ is used as a material of construction for the blade of power saw.
  2. __________ is not a case hardening process.
  3. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
  4. __________ iron is produced by the annealing of white cast iron.
  5. A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
  6. The joint for soldering is supported by binding wire made of
  7. Powder metallurgy is used to produce
  8. In the blast furnace, incorporation of water vapour in the blast gives the following effect.
  9. What is the value of included angle of a triangular notch for maximum discharge?
  10. Fire refining process is employed in case of
  11. __________ joint is mostly used for joining pipes carrying water at low pressure.
  12. Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when…
  13. In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are…
  14. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
  15. High relative humidity decreases the evaporative process and as the temperature is increased, the relative…
  16. Induced draft fans provided in large thermal power plant boilers have __________ blades.
  17. The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
  18. Which of the following materials has the poorest electrical conductivity?
  19. Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same…
  20. The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.
  21. Wrought iron is not
  22. Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v2)] (V - b) = RT, depends…
  23. Which of the following does not discharge the dust collected as a dry solid?
  24. Which one is neutral in character?
  25. Dryness fraction of dry steam is
  26. Thermit welding is categorised as the __________ welding.
  27. __________ is used for tying the steel columns to concrete foundation.
  28. Metal shots used in shot blasting are made of
  29. Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
  30. Cementite is in the lamellar form in the __________ phase of steel.