Silicon when added to copper improves? Mark as favorite Copy Link machinability hardness hardness and strength strength and ductility Check Answer
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces? Mark as favorite Copy Link white cast iron nodular cast iron malleable cast iron alloy cast iron Check Answer
In spheroidising process, the steel is? Mark as favorite Copy Link heated below the lower critical temperature and then cooled slowly heated upto the lower critical temperature and then cooled in still air heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600? C none of the above Check Answer
The ability of a material to resist fracture due to high impact loads, is called? Mark as favorite Copy Link strength stiffness toughness brittleness Check Answer
The machinability of steel is improved by adding? Mark as favorite Copy Link nickel chromium nickel and chromium sulphur, lead and phosphorus Check Answer
Chilled cast iron is produced? Mark as favorite Copy Link by adding magnesium to molten cast iron by quick cooling of molten cast iron from white cast iron by annealing process none of these Check Answer
Which of the following material has maximum ductility? Mark as favorite Copy Link Mild steel Copper Nickel Aluminium Check Answer
Manganese bronze has? Mark as favorite Copy Link good wearing qualities and high elasticity high yield point, high fatigue limit and excellent cold and hot corrosion resistance high resistance to corrosion valuable cold working property Check Answer
The malleability is the property of a material by virtue of which a material? Mark as favorite Copy Link regains its shape and size after the removal of external forces retains the deformation produced under load permanently can be drawn into wires with the application of a tensile force can be rolled or hammered into thin sheets Check Answer
Shock resisting steels should have? Mark as favorite Copy Link low wear resistance low hardness low tensile strength toughness Check Answer