Machine Design The steel pulleys are __________ in weight than cast iron pulleys of the same capacity. Moderate Heavier Lighter None of these Moderate Heavier Lighter None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The fatigue life of a part can be improved by Electroplating Coating Polishing Shot peening Electroplating Coating Polishing Shot peening ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads. Double Three times Four times Same Double Three times Four times Same ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which process will increase the fatigue duration of parts? De-carburisation Finishing and polishing Shot-peening Electroplating De-carburisation Finishing and polishing Shot-peening Electroplating 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 The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as (Kf + 1)/ (Kt + 1) (Kt + 1)/ (Kf + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kf + 1)/ (Kt + 1) (Kt + 1)/ (Kf + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS