MCQOPTIONS
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				| 1. | 
                                    Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars. | 
                            
| A. | hot rolled mild | 
| B. | cold rolled mild | 
| C. | forged | 
| D. | machinable stainless | 
| Answer» C. forged | |