CHM is used to remove the thin surfaces from forgings and castings, at which time of process?(a) After penetration inspection(b) Prior to penetration inspection(c) At the starting of process(d) At the end of processI have been asked this question by my college professor while I was bunking the class.My doubt stems from CHM-Applications in portion Chemical Processes of Advanced Machining

CHM is used to remove the thin surfaces from forgings and castings, at

1.	CHM is used to remove the thin surfaces from forgings and castings, at which time of process?(a) After penetration inspection(b) Prior to penetration inspection(c) At the starting of process(d) At the end of processI have been asked this question by my college professor while I was bunking the class.My doubt stems from CHM-Applications in portion Chemical Processes of Advanced Machining
Answer» The correct answer is (b) Prior to penetration inspection The explanation: REMOVAL of thin surfaces from FORGINGS and casting TAKES place, prior to penetration depth inspection.

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