In: Mechanical Engineering
True or False
1. Shafts utilized for constant power transmission with no supported components may be designed using static failure theory.
2. Slope and deflection of shafts are constrained to ensure proper functionality of the supported components
3. For a given bending moment loading and length, a shaft with smaller diameter will result in smaller angular deflection at the bearing supports.
4. For a shaft subjected to combined variable bending and constant torsional loading, the shaft diameter at the critical location can be determined using Gerber theory
5. A shaft that satisfies deflection constraints for a given loading will have an infinite life
6. Langer failure theory best predicts fatigue failure of shafts under variable bending and torsion
7. Material of the shaft is chosen such that strength is greater than applied loading at critical location in order to ensure desired life and meet reliability requirements.