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| Q. |
Which of the following is not correct about submerged arc welding? |
| A. | high deposition rate |
| B. | short set-up time |
| C. | high quality welds |
| D. | slag removal needed |
| Answer» B. short set-up time | |
| Explanation: the following are some advantages of submerged arc welding: (i) high deposition rate, (ii)high quality welds with good ductility, high impact strength, good corrosion resistance, (iii)good for welding long joints(in excess of 1m), (iv)no eye protection required. some disadvantages are : (i) long set-up time, (ii)slag removal needed, (iii)used for flat or horizontal fillets only. | |
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