Machine Design Screws used for power transmission should have Strong teeth Low efficiency Very fine threads High efficiency Strong teeth Low efficiency Very fine threads High efficiency ANSWER DOWNLOAD EXAMIANS APP
Machine Design The angle of twist of shaft is Directly proportional to (shaft diameter)⁴ Directly proportional to (shaft diameter)² Inversely proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)² Directly proportional to (shaft diameter)⁴ Directly proportional to (shaft diameter)² Inversely proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)² ANSWER DOWNLOAD EXAMIANS APP
Machine Design The size of a cam depends upon Base circle Prime circle Pitch circle Pitch curve Base circle Prime circle Pitch circle Pitch curve ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) (1 - sinφ)/ (1 + sinφ) (1 - sinφ)/ (1 + cosφ) (1 + sinφ)/ (1 - sinφ) (1 + cosφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings as compared to sliding contact bearings have Small overall dimensions Accuracy of shaft alignment Low starting and low running friction except at very high speeds All of these Small overall dimensions Accuracy of shaft alignment Low starting and low running friction except at very high speeds All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to withstand resistance to wear, the best profile of gear is 14½° full depth involute tooth 20° involute stub tooth 14½° stub tooth 20° full depth involute tooth 14½° full depth involute tooth 20° involute stub tooth 14½° stub tooth 20° full depth involute tooth ANSWER DOWNLOAD EXAMIANS APP
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