Cold chisel & hammers are made of

A. High speed steel

B. High carbon steel

C. Forged steel

D. Mild steel

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

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  1. The only suitable method for hardening the low carbon steel is case hardening. Which of the following…
  2. Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A.…
  3. Diffusion co-efficient of a metal in a solid solution depends upon its
  4. The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
  5. Laser welding is widely employed in the __________ industries.
  6. While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous…
  7. Electrochemical corrosion can occur, only if __________ is present in contact with metal.
  8. Which of the following rays has the least wavelength?
  9. Silicon percentage in the silicon steel used for electrical appliances/equipments is
  10. L.D. (Linz-Donawitz) converter is used in the production of
  11. Faraday's law of electrolysis is related to the
  12. The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a…
  13. High relative humidity decreases the evaporative process and as the temperature is increased, the relative…
  14. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
  15. Density in the solid state is slightly less than that in its liquid state, in case of
  16. Common salt is produced from sea water in India generally by the __________ method.
  17. Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial…
  18. Maximum permissible air velocity in pipelines is about __________ metre/second.
  19. Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
  20. Lead is added to 60:40 brass primarily to improve
  21. As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint…
  22. A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C.…
  23. Chlorine acts as a bleaching agent only in the presence of
  24. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
  25. Triple point of water is
  26. Electrostatic separation of minerals from each other is based on their differences in the following…
  27. Runge-Kutta method is used to solve a/an
  28. Dislocation cross-slip is difficult in those materials, which have
  29. __________ is not used as the control rod material in a nuclear reactor.
  30. Which of the following low melting alloy containing bismuth and lead is used for electric fuse?