11. In electrical resistance welding pressure applied varies in the range
12. When the more amount of acetylene than oxygen is mixed and burn at tip of the welding torch. The flame generated is called
13. Bainite in iron-carbon alloys has a . . . . . . . . structure.
14. It takes 10 hours to homogenize an alloy at 1273 K. The time required (in hours) to achieve the same extent of homogenization at 1373 K is . . . . . . . .
Given: Diffusivity, D1373 K = 10-18 m2 s-1 and D1273 K = 10-19 m2 s-1
Given: Diffusivity, D1373 K = 10-18 m2 s-1 and D1273 K = 10-19 m2 s-1
15. Typical examples of heat conduction through cylindrical tubes are not found in
16. In mechanical working processes, lubricants don't . . . . . . . .
17. The structure of Polymer . . . . . . . .
18. The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it is defined as
19. In resistance welding the pressure is released
20. In the Frank-Read dislocation source, if the distance between fixed points is L, then the minimum possible value of dislocation loop radius will be equal to
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