A truck crane is a special kind of vehicle that helps lift and move heavy things, kind of like a superhero for big objects! It has a long arm called a boom, which is the part that reaches up into the sky or extends out to grab things.
Here’s how it works:
- The Truck: The truck is strong and helps move the crane to different places. It has wheels that roll on the ground.
- The Boom: The boom is the long arm attached to the truck. It can go up, down, and even swing around. This is how the crane can reach things that are high up or far away.
- Lifting Things: At the end of the boom, there’s usually something called a hook or a bucket that can grab or hold onto heavy objects. When the crane driver wants to lift something, they make the boom go up or extend it to grab the object and then raise it into the air!
- Moving Objects: After lifting something, the crane can move it to a new spot by swinging the boom around and then lowering it down gently where it needs to go.
So, whenever you see a truck crane, remember it’s like a giant robot arm that helps make moving heavy stuff easier!