MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
What is meant by thermosetting plastic? |
| A. | It softens on heating and returns to original hardness on cooling |
| B. | It hardens on heating and retains hardness on cooling |
| C. | It hardens on heating and returns to original hardness on cooling |
| D. | It softens on heating and retains hardness on cooling |
| Answer» C. It hardens on heating and returns to original hardness on cooling | |