Gate ME-2009 Question Paper With Solutions

Q 47. Electrochemical machining is performed to remove material from an iron surface of 20mm × 20mm under the following conditions:
Inter electrode gap = 0.2mm

Supply voltage (DC) = 12V

Specific resistance of electrolyte = 2Ωcm

Atomic weight of Iron = 55.85

Valency of Iron = 2

Faraday’s constant =96540 Coulombs
The material removal rate (in g/s) is

(A) 0.3471

(B) 3.471

(C) 34.71

(D) 347.1

Answer: (A)

Explanation:

Gate ME-2009 Question Paper With Solutions

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