Question

Pre cleaning is done on the work piece surface in order to achieve, which of the following factors?

(a) To provide good adhesion

(b) To provide clean surface

(c) To assure the absence of contaminants

(d) All of the mentioned

The question was posed to me by my college director while I was bunking the class.

This interesting question is from Chemical Milling in portion Chemical Processes of Advanced Machining

Answer 1

The correct choice is (d) All of the mentioned

The best I can explain: All the factors mentioned above, are achieved thorough pre-cleaning process.