Machine Design The contact ratio is the ratio of Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of contact to the circular pitch Length of arc of approach to the circular pitch Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of contact to the circular pitch Length of arc of approach to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to T/2 2 T 1 T 4 T T/2 2 T 1 T 4 T ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To prevent the lubricant from flowing out To reduce friction To facilitate slipping of balls To maintain the balls at a fixed distance apart To prevent the lubricant from flowing out To reduce friction To facilitate slipping of balls To maintain the balls at a fixed distance apart ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be 4F/ πd² 8F/ πd² 16F/ 3πd² 6F/ πd² 4F/ πd² 8F/ πd² 16F/ 3πd² 6F/ πd² ANSWER DOWNLOAD EXAMIANS APP
Machine Design The designation M 33 × 2 of a bolt means Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads with cross-section of 33 mm Metric threads of 33 mm outside diameter and 2 mm pitch Metric threads of 33 numbers in 2 cm Bolt of 33 mm nominal diameter having 2 threads per cm Metric threads with cross-section of 33 mm Metric threads of 33 mm outside diameter and 2 mm pitch Metric threads of 33 numbers in 2 cm ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? The efficiency of Acme (trapezoidal) thread is less than that of a square thread Both (A) and (B) If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of a self locking screw can not be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread Both (A) and (B) If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of a self locking screw can not be more than 50% ANSWER DOWNLOAD EXAMIANS APP
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