Machine Design The coefficient of friction in belt drive depends upon Materials of belt and pulley Belt velocity Material of pulley Material of belt Materials of belt and pulley Belt velocity Material of pulley Material of belt ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the screw in a mechanical screw jack rotates, the load kept on the top of it moves Axially upwards Axially downwards None of these Axially upwards or downwards Axially upwards Axially downwards None of these Axially upwards or downwards ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a spring is cut down into two springs, the stiffness of cut springs will be Double None of these Same Half Double None of these Same Half ANSWER DOWNLOAD EXAMIANS APP
Machine Design Form coefficient of spring is Its capability of storing energy Ratio of coil diameter to wire diameter Load required to produce unit deflection Concerned with strength of wire of spring Its capability of storing energy Ratio of coil diameter to wire diameter Load required to produce unit deflection Concerned with strength of wire of spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (3a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (3a/b)] σ [1 + (b/2a)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to withstand resistance to wear, the best profile of gear is 20° involute stub tooth 14½° stub tooth 20° full depth involute tooth 14½° full depth involute tooth 20° involute stub tooth 14½° stub tooth 20° full depth involute tooth 14½° full depth involute tooth ANSWER DOWNLOAD EXAMIANS APP
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