Bennett Mechanical Comprehension Practice Test 2025 – The Complete All-in-One Guide to Exam Success!

In a third-class lever, the effort is applied between the fulcrum and the load. This configuration allows for a greater range of motion and speed at the load end compared to the amount of force exerted. A pair of tweezers exemplifies this principle beautifully; as the handles are squeezed together (the effort), the pincers at the other end move to pick up an object (the load), while the pivot point (the fulcrum) is located just inside the handles. This arrangement allows for precise control and manipulation of small items, making it an effective tool in various applications.

In contrast, a wheelbarrow represents a second-class lever where the load is between the effort and the fulcrum. A seesaw is classified as a first-class lever, with the fulcrum positioned between the effort and the load. A crowbar operates similarly to a first-class lever as well, with the fulcrum located towards one end, allowing the other end to be used to lift a heavy object.