Machine Design In a marine flange coupling, the pitch circle diameter of bolts is taken as 2.5 d 1.2 d 2 d 1.6 d 2.5 d 1.2 d 2 d 1.6 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt may be increased by Making the shank diameter equal to core diameter of thread Increasing its shank diameter Decreasing its shank diameter Tightening the bolt properly Making the shank diameter equal to core diameter of thread Increasing its shank diameter Decreasing its shank diameter Tightening the bolt properly ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are, usually, made from Medium carbon steel High speed steel High carbon steel Low carbon steel Medium carbon steel High speed steel High carbon steel Low carbon steel ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° + φ/2 45° - φ 90° - φ 45° - φ/2 45° + φ/2 45° - φ 90° - φ 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio Increases Remains unchanged None of these Decreases Increases Remains unchanged None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
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