Bennett Mechanical Comprehension Practice Test

The correct answer reflects that the gear ratio embodies an inverse relationship between the input speed and the output speed of a gear system. In the formula N1/N2 = V2/V1, N1 and N2 represent the speeds of the gears, while V1 and V2 correspond to the output and input speeds, respectively. When the gear ratio is higher, meaning N1 is larger compared to N2, the output speed (V2) decreases in comparison to the input speed (V1). Thus, if one part of the equation increases, the other must compensate by decreasing, illustrating the inverse nature of their relationship. This fundamental understanding is crucial when analyzing mechanical systems, particularly when predicting how changes in gear sizes and arrangements affect overall performance. Other options about direct proportionality and dependencies on voltage are not applicable here, as these concepts do not relate directly to the speed relationships dictated by gear ratios. This understanding helps in problem-solving and practical applications in mechanical engineering and design.