Machine Design When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus. 10 times 15 times 20 times 5 times 10 times 15 times 20 times 5 times ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to 8W/9 W/9 W/2 2W/3 8W/9 W/9 W/2 2W/3 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shaft coupling is used in machinery to Reduce the transmission of shock loads All of these Introduce mechanical flexibility Introduce protection against over loads Reduce the transmission of shock loads All of these Introduce mechanical flexibility Introduce protection against over loads ANSWER DOWNLOAD EXAMIANS APP
Machine Design An open coiled helical compression spring 'A' of mean diameter 50 mm is subjected to an axial load ‘W’. Another spring 'B' of mean diameter 25 mm is similar to spring 'A' in all respects. The deflection of spring 'B' will be __________ as compared to spring 'A'. One-half One-eighth One-fourth Double One-half One-eighth One-fourth Double ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to withstand resistance to wear, the best profile of gear is 14½° stub tooth 14½° full depth involute tooth 20° involute stub tooth 20° full depth involute tooth 14½° stub tooth 14½° full depth involute tooth 20° involute stub tooth 20° full depth involute tooth ANSWER DOWNLOAD EXAMIANS APP
Machine Design The fatigue stress concentration factor is defined as The ratio of endurance limit with stress concentration to the endurance limit without stress concentration All of these The product of the endurance limits with and without stress concentration The ratio of endurance limit without stress concentration to the endurance limit with stress concentration The ratio of endurance limit with stress concentration to the endurance limit without stress concentration All of these The product of the endurance limits with and without stress concentration The ratio of endurance limit without stress concentration to the endurance limit with stress concentration ANSWER DOWNLOAD EXAMIANS APP
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