The train value of a gear train is
(a) equal to velocity ratio of a gear train
(b) reciprocal of velocity ratio of a gear train
(c) always greater than unity
(d) always less than unity
The question was posed to me in an interview for internship.
My doubt stems from Minimum Number of Teeth on a Pinion for Involute Rack in Order to Avoid Interference in chapter Toothed Gearing & Gear Trains of Machine Kinematics