Machine Design The ball bearings are provided with a cage To reduce friction To facilitate slipping of balls To prevent the lubricant from flowing out To maintain the balls at a fixed distance apart To reduce friction To facilitate slipping of balls To prevent the lubricant from flowing out To maintain the balls at a fixed distance apart ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the factor of safety of riveted joint should not be less than 2 4 3 1 2 4 3 1 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings as compared to sliding contact bearings have Small overall dimensions Accuracy of shaft alignment All of these Low starting and low running friction except at very high speeds Small overall dimensions Accuracy of shaft alignment All of these Low starting and low running friction except at very high speeds ANSWER DOWNLOAD EXAMIANS APP
Machine Design The centrifugal tension in the belt Increases the power transmitted Has no effect on the power transmitted Is equal to maximum tension on the belt Decreases the power transmitted Increases the power transmitted Has no effect on the power transmitted Is equal to maximum tension on the belt Decreases the power transmitted ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for Ease of manufacture Safety Fullering and caulking Reducing stress concentration Ease of manufacture Safety Fullering and caulking Reducing stress concentration ANSWER DOWNLOAD EXAMIANS APP
Machine Design If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by p/ZN ZN/p Z/pN N/Zp p/ZN ZN/p Z/pN N/Zp ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS