Which of the following is a power tool?

• A. Chainsaw
• B. Hammer
• C. Electric drill
• D. Jigsaw

Answer: (C)

Power tools run on an external energy source—electricity, batteries, or fuel—so they can do work beyond what you can with your own effort. An electric drill is a clear example because it uses an electric motor to spin the drill bit, letting you bore holes or drive screws quickly and with controlled speed and torque. Its versatility comes from the ability to swap bits for different tasks, and many models let you adjust speed for materials like wood, metal, or plastic.

The hammer, by contrast, is a manual tool that relies on your physical impact rather than a motor. Chainsaws and jigsaws are also powered tools used for cutting, which is why they fit the category too, but the electric drill is the most widely recognized example of a power tool for drilling and driving tasks. When using any power tool, follow safety steps such as securing the work, wearing eye and hearing protection, and unplugging before changing bits.