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When the electrode gap is too small or electrodes are in contact, how much material is removed?(a) 10%(b) 20%(c) 30%(d) No material removedI got this question in a national level competition.My doubt is from EDM-Mechanism of Material Removal topic in chapter Thermal Processes of Advanced Machining

Answer»

Correct CHOICE is (d) No material removed

To EXPLAIN I would say: When electrodes come in contact with ONE ANOTHER, short circuits occur and material removed is not possible.



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