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When the electrode gap is too small or electrodes are in contact, how much material is removed?

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in Advanced Machining by (962k points)
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 removed

I 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

1 Answer

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by (532k points)
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Best 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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