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 4.5/ (4.5 + v) 6/ (6 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 6/ (6 + v) 3/ (3 + v) 0.75/ (0.75 + √v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending stress in a curved beam is Zero at the centroidal axis None of these Zero at the point other than centroidal axis Maximum at the neutral axis Zero at the centroidal axis None of these Zero at the point other than centroidal axis Maximum at the neutral axis ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ 45° - φ/2 45° + φ/2 90° - φ 45° - φ 45° - φ/2 45° + φ/2 90° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the levers of third type, the mechanical advantage is __________ one. More than None of these Less than Equal to More than None of these Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tapered roller bearings can take Radial load only Axial load only Both radial and axial loads and the ratio of these being greater than unity Both radial and axial loads and the ratio of these being less than unity Radial load only Axial load only Both radial and axial loads and the ratio of these being greater than unity Both radial and axial loads and the ratio of these being less than unity ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the fulcrum is in between the load and effort, the lever is said to be of First type Any one of these Third type Second type First type Any one of these Third type Second type ANSWER DOWNLOAD EXAMIANS APP
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