Machine Design The lead angle of a worm is 22.5°. Its helix angle will be 67.5° 22.5° 45° 90° 67.5° 22.5° 45° 90° ANSWER DOWNLOAD EXAMIANS APP
Machine Design When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as Mitre gears Internal bevel gears Angular bevel gears Crown bevel gears Mitre gears Internal bevel gears Angular bevel gears Crown bevel gears 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/2 90° - φ 45° - φ 45° + φ/2 45° - φ/2 90° - φ 45° - φ 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A universal coupling is used to connect two shafts Have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment Have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment ANSWER DOWNLOAD EXAMIANS APP
Machine Design If threads on a bolt are left hand, threads on nut will be Right hand with fine pitch Could be left or right hand Right hand with same pitch Left hand with same pitch Right hand with fine pitch Could be left or right hand Right hand with same pitch Left hand with same pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design At low temperatures (say 75°C) the notched bar impact value of steel Increases markedly Remain same Decreases markedly Depends on heat treatment carried out Increases markedly Remain same Decreases markedly Depends on heat treatment carried out ANSWER DOWNLOAD EXAMIANS APP
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