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Electrical systems refer to the organized arrangement of components that generate, transmit, distribute, and utilize electrical energy. They encompass a wide array of elements such as power generation sources, transformers, transmission lines, distribution networks, and end-use devices. Here are some core components and concepts related to electrical systems: 1. **Generation**: This is the initial stage where electrical energy is produced.

Hydraulics is a branch of science and engineering that deals with the mechanical properties and behavior of fluids, primarily liquids. It encompasses the study, design, and applications of systems that utilize fluid under pressure to perform work. The core principle of hydraulics is Pascal's law, which states that an increase in pressure applied to an incompressible fluid is transmitted undiminished throughout the fluid in all directions.

The term "machines" can refer to various types of devices or systems that perform work or specific tasks. In general, a machine is a tool or apparatus that uses mechanical energy to accomplish a particular function. Here are a few contexts in which the term "machines" is commonly used: 1. **Mechanical Machines**: These include simple machines like levers, pulleys, and inclined planes, as well as complex machines like engines, vehicles, and manufacturing equipment.

Transport, or transportation, refers to the movement of people, goods, and animals from one location to another. This process encompasses various modes and systems, including but not limited to: 1. **Modes of Transport**: - **Land Transport**: This includes vehicles traveling on roads and tracks, such as cars, buses, trucks, trains, bicycles, and motorcycles.