Which type of tools operates on human power?

Hand tools are the correct choice because they are specifically designed to be operated manually without the assistance of an external power source. This includes tools such as screwdrivers, hammers, wrenches, and pliers, which rely solely on the physical strength and dexterity of the user to function effectively.

In contrast, power tools are influenced by external energy sources, such as electricity, batteries, or compressed air, to perform tasks. Hydraulic tools utilize liquid under pressure to amplify force and perform actions, thus requiring a fluid power system to operate. Support tools tend to be auxiliary devices that may assist in carrying or positioning tasks but do not fall under the category of tools operated solely by human power.

Understanding the different classifications of tools is crucial in vehicle rescue and other emergency response scenarios, as it impacts the strategies and safety considerations during operations.