41. In _________ operation, the chip thickness is minimum at the beginning of the cut and it reaches to the maximum when the cut terminates.
42. Which of the following statement is correct for oblique cutting system?
43. The depth of cut in drilling is __________ the drill diameter.
44. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
45. In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is
46. In a shaper, the length of stroke is increased by
47. Slow speed of the spindle is necessary in
48. The crystal structure of austenite is
49. The correct sequence of the following parameters in order of their maximum to minimum influence on tool life is
50. Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance to be 200 μm and current flow time of 0.2 second, heat generated during the process will be
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