1. | When the file is moved to and fro over the work, it is known as ? | |
2. | For cutting brass, the hacksaw blade should have .................... teeth per 25 mm ? | |
3. | Most of the oxy-acetylene welding is done with ? | |
4. | The machining allowance provided on patterns depends upon ? | |
5. | A moving mandrel is used in ? | |
6. | Which of the following material can be used for making patterns ? | |
7. | Swab is used for ? | |
8. | In order to produce uniform packing of sand in the moulds, a ................... is used ? | |