Bennett Mechanical Comprehension Practice Test 2025 - Free Practice Questions and Review Guide

In a wheel and belt system, mechanical advantage is primarily influenced by factors that directly impact the force transmission and efficiency of the system. The radius of the wheels plays a significant role because larger wheels can produce more torque, leading to greater mechanical advantage. Similarly, the material of the belt impacts how much friction it can generate and how effectively it transmits force, thus influencing performance.

The angle of friction also plays a critical role since it affects how well the belt grips the wheels, impacting overall efficiency and strength of the connection between the two components. While the speed of rotation can influence how quickly the system operates, it does not inherently change the mechanical advantage itself. Mechanical advantage is more concerned with the ratio of output force to input force, which is influenced by the characteristics of the wheels and the belt rather than how fast they are rotating. Thus, the speed of rotation does not affect the fundamental mechanical advantage of the wheel and belt system.