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1. |
_If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by$? |
A. | ft .d/4fb |
B. | (π/4). (ft .d/fb) |
C. | π ft .d²/fb |
D. | (π/4). (ft .d3/fb) |
Answer» B. (≈ì√Ñ/4). (ft .d/fb) | |