Machine Design The acme threads are usually found on Spindles of bench vices Feed mechanism of machine tools Screw cutting lathes Railway carriage couplings Spindles of bench vices Feed mechanism of machine tools Screw cutting lathes Railway carriage couplings ANSWER DOWNLOAD EXAMIANS APP
Machine Design The root angle of a bevel gear is equal to Pitch angle - dedendum angle Pitch angle + addendum angle Pitch angle - addendum angle Pitch angle + dedendum angle Pitch angle - dedendum angle Pitch angle + addendum angle Pitch angle - addendum angle Pitch angle + dedendum angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The fatigue life of a part can be improved by Polishing Shot peening Coating Electroplating Polishing Shot peening Coating Electroplating ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To facilitate slipping of balls To prevent the lubricant from flowing out To reduce friction To maintain the balls at a fixed distance apart To facilitate slipping of balls To prevent the lubricant from flowing out To reduce friction To maintain the balls at a fixed distance apart ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be 2 τ τ τ/2 4 τ 2 τ τ τ/2 4 τ ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? 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 Acme (trapezoidal) thread is less than that of a square thread The efficiency of a self locking screw can not be more than 50% 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 Acme (trapezoidal) thread is less than that of a square thread The efficiency of a self locking screw can not be more than 50% ANSWER DOWNLOAD EXAMIANS APP
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