MCQOPTIONS
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MCQOPTIONS
| 1. |
The corrugation angle of sheets varies fro? |
| A. | 28 to 45<sup>o</sup> |
| B. | 30 to 45<sup>o</sup> |
| C. | 90 to 120<sup>o</sup> |
| D. | 55 to 67<sup>o</sup> |
| Answer» B. 30 to 45<sup>o</sup> | |