Machine Design If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value? Maximum strain energy theory Maximum principal stress theory Maximum shear stress theory Maximum distortion energy theory Maximum strain energy theory Maximum principal stress theory Maximum shear stress theory Maximum distortion energy theory ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. 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 τ/2 τ 2 τ 4 τ τ/2 τ 2 τ 4 τ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The lower deviation is the algebraic difference between the Maximum limit and the basic size None of these Actual size and the corresponding basic size Minimum limit and the basic size Maximum limit and the basic size None of these Actual size and the corresponding basic size Minimum limit and the basic size ANSWER DOWNLOAD EXAMIANS APP
Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension) [⅟₂ × (P1 + P2)] + Pc P1 + P2 [(√P1 + √P2)/2]² ⅟₂× (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 + P2 [(√P1 + √P2)/2]² ⅟₂× (P1 + P2) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The resilience of a bolt may be increased by Decreasing its length Increasing its shank diameter Decreasing its shank diameter Increasing its length Decreasing its length Increasing its shank diameter Decreasing its shank diameter Increasing its length ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress induced in the belt is, Tensile stress Torsional shear stress Direct shear stress Compressive stress Tensile stress Torsional shear stress Direct shear stress Compressive stress ANSWER DOWNLOAD EXAMIANS APP
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