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1. |
A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm² produces a strain of 0.004 cm. If Young's modulus of steel is 2.1 x 10⁶ kg/cm², the bar is |
A. | in the elastic range |
B. | in the plastic range |
C. | at yield point |
D. | none of these. |
Answer» B. in the plastic range | |