23) Which is the reason that PCB taken out of the solution is to be cleaned by fresh water?
Answer is:
To stop further etching
Related Colouring techniques MCQ with Answers
Answer is:
Al
Explanation:
Chemical formula of aluminium is "Al".
Answer is:
Anodic oxidation of aluminium
Explanation:
Anodising is an electrolytic process for producing thick oxide coatings, usually on aluminium and its alloys. The oxide layer is typically 5 to 30µm in thickness and is used to give improved surface resistance to wear and corrosion, or as a decorative layer.