MCQOPTIONS
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MCQOPTIONS
| 1. |
A steel rod 10 m long is at a temperature of 20°C. The rod is heated to a temperature of 60°C. What is the stress-induced in the rod if it is allowed to expand by 4 mm, when E = 200 GPa and α = 12 × 10-6/°C? |
| A. | 64 MPa |
| B. | 48 MPa |
| C. | 32 MPa |
| D. | 16 MPa |
| Answer» E. | |