Machine Design Which of the following screw thread is adopted for power transmission in either direction? Square threads Buttress threads Multiple threads Acme threads Square threads Buttress threads Multiple threads Acme threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design The acme threads are usually found on Spindles of bench vices Screw cutting lathes Railway carriage couplings Feed mechanism of machine tools Spindles of bench vices Screw cutting lathes Railway carriage couplings Feed mechanism of machine tools ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt 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 both the ends threaded Has a head on one end and a nut fitted to the other 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 both the ends threaded Has a head on one end and a nut fitted to the other ANSWER DOWNLOAD EXAMIANS APP
Machine Design Resistance to fatigue of a material is measured by Endurance limit Elastic limit Young's modulus Coefficient of elasticity Endurance limit Elastic limit Young's modulus Coefficient of elasticity ANSWER DOWNLOAD EXAMIANS APP
Machine Design A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress) σ [1 + (b/3a)] σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (b/3a)] σ [1 + (3a/b)] σ [1 + (2a/b)] σ [1 + (b/2a)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is less than helix angle Friction angle is more than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is more than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
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