MCQOPTIONS
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| 1. |
A screw pile consists of cast iron or steel shaft of external diameter varying from |
| A. | 0 to 150 mm |
| B. | 150 to 300 mm |
| C. | 300 to 450 mm |
| D. | 450 to 600 mm |
| Answer» C. 300 to 450 mm | |