Engineering Questions with Answers - Multiple Choice Questions
Manufacturing Processes – Annealing – 9
1 - Question
Grain cells having a number of sides _____ have grain walls which are concave inwards.
Explanation: The cells with less than 6 sides have walls that are primarily concave toward their centres. Those cells with more than 6 sides have walls convex toward their centres, this effect is more pronounced the larger the number of sides above 6.