1. The crane can move forwards and backwards on its wheels. (D)
2. The top part of the crane can rotate through 360*. (C)
3. The arm of the crane can ascend and descend through 90*. It can be in a vertical, diagonal or horizontal position. (A)
4. The hook below the end of the arm can go up and down. (B)
1. The crane can move forwards and backwards on its wheels. (D)
2. The top part of the crane can rotate through 360*. (C)
3. The arm of the crane can ascend and descend through 90*. It can be in a vertical, diagonal or horizontal position. (A)
4. The hook below the end of the arm can go up and down. (B)