Machine Design A screw is said to be over hauling screw, if the Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt Has both the ends threaded Is provided with pointed threads Has head at one end and other end fits into a tapped hole in the other part to be joined Has a head on one end and a nut fitted to the other Has both the ends threaded Is provided with pointed threads Has head at one end and other end fits into a tapped hole in the other part to be joined Has a head on one end and a nut fitted to the other ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that Bolts are weakest elements Bolts will not loosen during service The resultant load on the bolt would not be affected by the external cyclic load Joint may not open up Bolts are weakest elements Bolts will not loosen during service The resultant load on the bolt would not be affected by the external cyclic load Joint may not open up ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a multiple V-belt drive, if one of the belts break, then Only the broken belt is replaced The broken belt and the belt on either side of it, is replaced The entire set of belts is replaced The broken belt need not to be replaced Only the broken belt is replaced The broken belt and the belt on either side of it, is replaced The entire set of belts is replaced The broken belt need not to be replaced ANSWER DOWNLOAD EXAMIANS APP
Machine Design The effective stress in wire ropes during normal working is equal to the stress due to Axial load plus stress due to acceleration/retardation Axial load plus stress due to bending Acceleration/retardation of masses plus stress due to bending Bending plus stress due to acceleration/retardation Axial load plus stress due to acceleration/retardation Axial load plus stress due to bending Acceleration/retardation of masses plus stress due to bending Bending plus stress due to acceleration/retardation ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon 0.20 to 0.40% 0.40 to 0.60% None of these 0.35 to 0.45% 0.20 to 0.40% 0.40 to 0.60% None of these 0.35 to 0.45% ANSWER DOWNLOAD EXAMIANS APP
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