Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 90° - φ 45° + φ/2 45° - φ 45° - φ/2 90° - φ 45° + φ/2 45° - φ 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum bending stress in a curved beam having symmetrical section always occur at the Centroidal axis Outside fiber Neutral axis Inside fiber Centroidal axis Outside fiber Neutral axis Inside fiber ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than d 2 d 2.5 d 1.5 d d 2 d 2.5 d 1.5 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing. Either A or B Partially None of these Fully Either A or B Partially None of these Fully ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be 0.8 d 1.2 d 1.8 d 1.57 d 0.8 d 1.2 d 1.8 d 1.57 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A connecting rod is designed as a Long column All of these Strut Short column Long column All of these Strut Short column ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS