Machine Design For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately 0.7 times 0.8 times 0.4 times 0.6 times 0.7 times 0.8 times 0.4 times 0.6 times ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear plane in case of bolts should Never be across the threaded portion Be parallel to axis of bolt Be across threaded portion of shank Be normal to threaded portion of shank Never be across the threaded portion Be parallel to axis of bolt Be across threaded portion of shank Be normal to threaded portion of shank ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 0.75/ (0.75 + √v) 3/ (3 + v) 4.5/ (4.5 + v) 6/ (6 + v) 0.75/ (0.75 + √v) 3/ (3 + v) 4.5/ (4.5 + v) 6/ (6 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are, usually, made from Medium carbon steel High carbon steel High speed steel Low carbon steel Medium carbon steel High carbon steel High speed steel Low carbon steel ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if 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 Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm, gears, pitch lead angle is None of these The angle between the tangent to the pitch helix and the plane of rotation Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and an element of the cylinder None of these The angle between the tangent to the pitch helix and the plane of rotation Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and an element of the cylinder ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS