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666. Which of the following is a correct description of equipment attached to a recovery vehicle?
- The arm structure hung from the main body of the crane is called a hook.
- The device used to connect the recovery vehicle to a structure when towing is called the PTO switch.
- The structure attached to the front and rear sides in order to secure stability during tasks is called an outrigger.
- The device installed on the crane and on which a weighted item is hooked with a wire rope is called a boom.
Answer : 3