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Addition of __________ to steel does not help in improving its machinability.

A. Sulphur

B. Silicon

C. Lead

D. Phosphorous

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

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  1. The material used for coating the welding electrode is termed as the
  2. The surface tension of a liquid, at critical temperature is
  3. Sub zero treatment of steel is done to
  4. Which of the following metals reacts violently with water?
  5. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
  6. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
  7. Maximum consumption of limestone is in the __________ industry.
  8. The refractory lining of the bottom in a basic electric arc furnace is made of
  9. The ratio of the shear stress to the principal stress on a principal plane is
  10. Highest cutting speed is achieved by the __________ tool material.
  11. __________ joint is mostly used for joining pipes carrying water at low pressure.
  12. For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
  13. Pick out the correct statement.
  14. As the fluid flow rate increases, the float of the Rotameter
  15. When an isolated thermodynamic system executes a process,
  16. Function of gear box is to
  17. __________ the exhaust gas is an indication of the incomplete combustion of fuel.
  18. Basicity of the slag in Indian blast furnace is in the range of
  19. Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
  20. Annealing of cast iron
  21. Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat…
  22. Reduction in the grain size reduces the __________ of the material.
  23. Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
  24. __________ can replace tungsten in high speed steel.
  25. Which one of the following is incombustible?
  26. A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through…
  27. The hardenability of steel decreases with
  28. Uniform ramming of sand in green sand moulding process leads to
  29. Spherical shape of mercury droplets is due to its
  30. Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation…