71. Cold working of steel is defined as working
72. Hot rolling of mild steel is carried out
73. In centerless grinders, the regulating wheel is inclined at
74. If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
75. In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as Positive pole of the welding arc, the arrangement is known as
76. What is the welding defect caused due to improper control and poor removal of slog between passes called?
77. Crater wear is mainly due to the phenomenon known as
78. The main purpose of spheroidising treatment is to improve
79. Gear finishing operation is called
80. The chuck preferred for quick setting and accurate centering of a job is
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