MCQOPTIONS
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				| 1. | 
                                    For two gears having shaft angle 90° and friction angle 6°, find the maximum efficiency of the helical gears.$ | 
                            
| A. | 89.23% | 
| B. | 85.64% | 
| C. | 79.02% | 
| D. | 81.07% | 
| Answer» E. | |