Machine Design Machine screws are Similar to stud Slotted for a screw driver and generally used with a nut Used to prevent relative motion between two parts Similar to small size tap bolts except that a greater variety of shapes of heads are available Similar to stud Slotted for a screw driver and generally used with a nut Used to prevent relative motion between two parts Similar to small size tap bolts except that a greater variety of shapes of heads are available ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is F.P P F F + P F.P P F F + P ANSWER DOWNLOAD EXAMIANS APP
Machine Design The fatigue life of a part can be improved by Electroplating Polishing Coating Shot peening Electroplating Polishing Coating Shot peening 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) 2080 d 1420 d 1680 d 2840 d 2080 d 1420 d 1680 d 2840 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The coefficient of friction in belt drive depends upon Material of belt Material of pulley Materials of belt and pulley Belt velocity Material of belt Material of pulley Materials of belt and pulley Belt velocity ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that It is more stretched than the outer side during the manufacturing process It is subjected to a higher cyclic loading than the outer side It is subjected to a higher stress than the outer side It has a lower curvature than the outer side It is more stretched than the outer side during the manufacturing process It is subjected to a higher cyclic loading than the outer side It is subjected to a higher stress than the outer side It has a lower curvature than the outer side ANSWER DOWNLOAD EXAMIANS APP
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