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| Q. |
Which of the following formula for columns takes into account any initial crookedness of the column and imperfectness of axial loading? |
| A. | Secant formula |
| B. | Increasing the diameter of threaded portion |
| C. | Euler's formula |
| D. | Rankiness formula |
| E. | Perry Robertson formula |
| Answer» A. Secant formula | |
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