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Q. |
Surface roughness depend on which of the following quantities? |
A. | crystallographic irregularities |
B. | alloy composition |
C. | distribution of current density |
D. | all of the mentioned |
Answer» D. all of the mentioned | |
Explanation: surface roughness of machined surface in ecm depend on crystallographic irregularities, alloy composition, current density distribution, dislocations and grain boundaries. |
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