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Mechanical Engineering Theory Of Machine Difficulty: Medium

The ultimate tensile stress for mild steel is __________ the ultimate compressive stress. A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is $$\tau $$. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be Yield point in fatigue loading as compared to static loading is The property by virtue of which a liquid opposes relative motion between its different layers is called The function of positive crankcase ventilation (PCV) system is that it