Machine Design In order to obtain bolt of uniform strength Increase shank diameter Tighten die bolt properly Increase its length Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase shank diameter Tighten die bolt properly Increase its length Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design A column of length l is fixed at both ends. The equivalent length of the column is l/2 2 l l l/√2 l/2 2 l l l/√2 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 90° - φ 45° - φ/2 45° - φ 45° + φ/2 90° - φ 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Creep in belt is due to Uneven extensions and contractions due to varying tension All of these Material of the pulley Material of the belt Uneven extensions and contractions due to varying tension All of these Material of the pulley Material of the belt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Deep groove ball bearings are used for Small angular displacement of shafts Heavy thrust load only Radial load at high speed Combined thrust and radial loads at high speed Small angular displacement of shafts Heavy thrust load only Radial load at high speed Combined thrust and radial loads at high speed 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) 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
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