Machine Design In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle. Larger than None of these Equal to Smaller than Larger than None of these Equal to Smaller than ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings as compared to sliding contact bearings have Low starting and low running friction except at very high speeds Small overall dimensions Accuracy of shaft alignment All of these Low starting and low running friction except at very high speeds Small overall dimensions Accuracy of shaft alignment All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design A rivet is specified by Length of rivet Length of tail Type of head Shank diameter Length of rivet Length of tail Type of head Shank diameter 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 + (b/2a)] σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/3a)] σ [1 + (b/2a)] σ [1 + (3a/b)] σ [1 + (2a/b)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt may be increased by Increasing its shank diameter Tightening the bolt properly Making the shank diameter equal to core diameter of thread Decreasing its shank diameter Increasing its shank diameter Tightening the bolt properly Making the shank diameter equal to core diameter of thread Decreasing its shank diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design The helix angle for double helical gears may be made up to 90° 75° 60° 45° 90° 75° 60° 45° ANSWER DOWNLOAD EXAMIANS APP
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