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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