Saved Bookmarks
| 1. |
Rat tails and buckles in sand casting are caused by __________(a) Lower strength of the solidified metal(b) Lower refractoriness of the moulding sand(c) Lower strength of the moulding sand(d) Lower hardness of the moulding sand |
|
Answer» The correct choice is (c) Lower strength of the moulding sand Explanation: Lower strength of the moulding sand causes rat tails and buckles type of defect in manufacturing of casting. |
|