Определение и Значение "jack"

What is a "jack"?

A jack is a tool used to lift heavy objects, typically vehicles or large machinery, off the ground. It works by using a hydraulic or mechanical system to raise the object, allowing for tasks like changing a tire, repairing, or maintenance. The most common type is a car jack, which often has a small, compact design with a lifting arm and a handle. Jacks are available in different sizes and lifting capacities, from smaller models for cars to larger ones used in construction or industrial work. They are an essential tool for lifting heavy loads safely and efficiently.