Question

State whether the following statement is true or false regarding PCM.

(a) “In PCM, etching depth does not depend on the time, a component is immersed in the chemical solution.”

(b) True

(c) False

The question was asked in an interview.

I need to ask this question from Photo Chemical Millling-Introduction in chapter Chemical Processes of Advanced Machining

Answer 1

Correct answer is (b) True

For explanation I would say: As in case of CHM, depth of etch in PCM depend upon the time of part immersed in chemical solution.