Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because The new belt will carry more than its share and result in short life New and old belts will cause vibrations Belts are available in sets Only one belt cannot be fitted with other used belts The new belt will carry more than its share and result in short life New and old belts will cause vibrations Belts are available in sets Only one belt cannot be fitted with other used belts ANSWER DOWNLOAD EXAMIANS APP
Machine Design Plastic flow in ductile materials Lessens the seriousness of static loading stress concentration Increases the seriousness of static loading stress concentration Depends on other considerations Has no effect on it Lessens the seriousness of static loading stress concentration Increases the seriousness of static loading stress concentration Depends on other considerations Has no effect on it ANSWER DOWNLOAD EXAMIANS APP
Machine Design The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm) 1680 d 2840 d 2080 d 1420 d 1680 d 2840 d 2080 d 1420 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A spring is used to All of these Store energy Apply forces Measure forces All of these Store energy Apply forces Measure forces 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 + (3a/b)] σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (b/2a)] σ [1 + (3a/b)] σ [1 + (b/3a)] σ [1 + (2a/b)] σ [1 + (b/2a)] ANSWER DOWNLOAD EXAMIANS APP
Machine Design The included angle between the sides of V-belt is 60° 45° 38° 40° 60° 45° 38° 40° ANSWER DOWNLOAD EXAMIANS APP
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