Machine Design The load cup of a screw jack is made separate from the head of the spindle to Prevent the rotation of load being lifted Reduce the effort needed for lifting the working load Reduce the value of frictional torque Enhance the load carrying capacity of the jack Prevent the rotation of load being lifted Reduce the effort needed for lifting the working load Reduce the value of frictional torque Enhance the load carrying capacity of the jack ANSWER DOWNLOAD EXAMIANS APP
Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Increase the belt velocity Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Prevent the belt from running off the pulley Increase the belt velocity Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Prevent the belt from running off the pulley ANSWER DOWNLOAD EXAMIANS APP
Machine Design A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as, Soft key Hollow saddle key Hollow key None of these Soft key Hollow saddle key Hollow key None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The crest diameter of a screw thread is same as Major diameter Core diameter Pitch diameter Minor diameter Major diameter Core diameter Pitch diameter Minor diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be 25 17 15 21 25 17 15 21 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 + (3a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (3a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (2a/b)] ANSWER DOWNLOAD EXAMIANS APP
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