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

In a 3rd class lever, the effort is applied between the load and the fulcrum. This configuration allows for significant mechanical advantage when it comes to holding and manipulating small objects. The characteristic of a short effort arm means that a smaller amount of force is needed to lift the load. This is particularly effective for tasks that require precision and control, such as picking up or adjusting small items.

The short distance from the fulcrum to where the effort is applied allows for quick movements and fine adjustments, making it easier to manipulate small objects with precision. This characteristic is particularly beneficial in activities that require dexterity and careful handling, as it enables the user to exert a greater range of motion with less force.

In contrast, a long lever arm would increase the distance from the fulcrum to the load, leading to greater mechanical advantage but less control over small movements. An equal load and effort distance does not optimize for manipulation of small objects, as it does not provide the necessary leverage for precision tasks. Lastly, while a fixed pivot point is essential for the lever to function, it does not specifically contribute to the effective manipulation of small objects.