Bennett Mechanical Comprehension Practice Test 2026 – The Complete All-in-One Guide to Exam Success!

Question: 1 / 400

What kind of lever is the hydraulic crane?

First class lever

Second class lever

Third class lever

A hydraulic crane operates using principles of hydraulic systems and lever mechanics, functioning primarily as a second class lever. In a second class lever, the load is located between the effort and the fulcrum. This setup allows for a mechanical advantage, making it easier to lift heavy objects, as the effort applied is amplified due to the position of the load.

In the case of a hydraulic crane, the hydraulic system generates a substantial force, enabling the crane to lift large loads with relatively little effort. The arm of the crane acts as the lever, with the point of articulation being the fulcrum, and the hydraulic force serves as the effort applied to lift the load positioned at the end of the crane's arm.

Understanding the mechanics involved in a hydraulic crane illustrates how the system leverages hydraulic pressure and lever principles to achieve high lifting capabilities, characteristic of second class levers.

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