RRB Junior Engineer / DMS / CMA 2019 · Question 3504 of 3719
Explanation : Electrochemical Grinding Work is machined by considered action of electrochemical effect (90%) and conventional grinding (10%) The material removal rate is inversely proportional to the Density of the workpiece material. A rotating grinding wheel will be used as a tool. The shaped tool is generally made of brass ,copper ,bronze, or stainless steel . The electrolyte is a highly conductive inorganic salt solution , such as sodium chloride mixed in water or sodium nitrate . It is pumped at a high rate through the passages in the tool. The penetration rate of the tool is proportional to the current density .
Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary
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