Explanation: the oxy acetylene gas welding is a type of exothermic reaction. 1 mole of acetylene can produce kj/mol of heat.
Manufacturing Technology MCQs | Page - 3
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Explanation: the chemical formula of acetylene is c2h2. 1 mole of acetylene can produce kj/mol of heat.
Explanation: amount of time during which the transformer will be used for welding under normal loading condition is known as the duty cycle.
Explanation: amount of current required to generate the arc under no load condition is called short circuit current (scc).
Explanation: in tungsten inert gas welding process a non-consumable electrode is used, which is made of tungsten.
Explanation: since dissimilar materials can be joined, a significant cost savings are possible because engineers can design bimetallic parts that use expensive materials only where needed. expensive forgings and castings can be replaced with less expensive forgings welded to bar stock, tubes, plates and the like.
Explanation: friction welding produces forged quality joints, with a 100% butt joint weld through the contact area. furthermore, in friction welding heat affected zone is much narrower as compared to other welds, which indeed reduces the cost of post-weld heat treatments (stress relieving processes).
Explanation: following are the few advantages of friction welding over other techniques:
Explanation: following are the few reasons to consider friction welding over other techniques:
Explanation: inertia friction welding is a variation of friction welding in which the energy required to make the weld is supplied primarily by the stored rotational kinetic energy of the welding machine.
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