Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Increase the belt velocity Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Increase the belt velocity ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Increases markedly Decreases markedly Remain same Depends on heat treatment carried out Increases markedly Decreases markedly Remain same Depends on heat treatment carried out ANSWER DOWNLOAD EXAMIANS APP
Machine Design A hot short metal is Ductile at high temperature Brittle under all conditions Brittle when cold Brittle when hot Ductile at high temperature Brittle under all conditions Brittle when cold Brittle when hot ANSWER DOWNLOAD EXAMIANS APP
Machine Design The product of the diametral pitch and circular pitch is equal to π × number of teeth π 1 1/π π × number of teeth π 1 1/π ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
Machine Design For low and moderate speed engines, the cam follower should move with Cycloidal motion Uniform velocity Simple harmonic motion Uniform acceleration and retardation Cycloidal motion Uniform velocity Simple harmonic motion Uniform acceleration and retardation ANSWER DOWNLOAD EXAMIANS APP
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