81. In a cold chamber die casting machine
82. Carburizing flame is used to weld
83. A progressive limit gauge has
84. The temperature at which the new grains are formed in the metal is called
85. The purpose of a gate is to
86. In order to check the clearance between two mating surfaces, a ________ gauge should be used.
87. In forehand welding, the angle between the welding rod and the work is kept as
88. In backhand welding, the angle between the welding torch and the work is kept as
89. In electric resistance welding, voltage required for heating is
90. To prevent the body of the blade from jamming in the saw cut, the teeth of blade are
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