Machine Design The modulus of elasticity for mild steel is approximately equal to 80 kN/mm² 110 kN/mm² 100 kN/mm² 210 kN/mm² 80 kN/mm² 110 kN/mm² 100 kN/mm² 210 kN/mm² ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 3/ (3 + v) 6/ (6 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 3/ (3 + v) 6/ (6 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Residual stress in materials Is always harmful Acts when external load is applied Is independent of external loads Becomes zero when external load is removed Is always harmful Acts when external load is applied Is independent of external loads Becomes zero when external load is removed 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension) ⅟₂× (P1 + P2) P1 + P2 [(√P1 + √P2)/2]² [⅟₂ × (P1 + P2)] + Pc ⅟₂× (P1 + P2) P1 + P2 [(√P1 + √P2)/2]² [⅟₂ × (P1 + P2)] + Pc ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct for gears? The pitch circle is always greater than the base circle The pitch circle diameter is equal to the product of module and number of teeth The addendum is less than dedendum All of these The pitch circle is always greater than the base circle The pitch circle diameter is equal to the product of module and number of teeth The addendum is less than dedendum All of these ANSWER DOWNLOAD EXAMIANS APP
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