Red Seal Heavy Equipment Operator (Excavator) Practice Exam

Where is the center of gravity typically located on an excavator?

1. Near the top of the boom

2. At the operator's seat

3. Near the base of the machine for stability

4. In the hydraulic system

The correct answer is: Near the base of the machine for stability

The center of gravity of an excavator is typically located near the base of the machine for stability. This positioning is crucial because it contributes to the overall balance and stability of the equipment when it is in operation. When the center of gravity is low and close to the ground, it helps prevent tipping or destabilizing during lifting or digging activities, especially when the boom is extended or raised. Understanding the importance of the center of gravity aids operators in performing safe and effective operations. For instance, when the boom is raised or extended, the location of the center of gravity plays a significant role in how the machine responds and remains stable. If the center of gravity were positioned higher or shifted to an inappropriate location, it could lead to potential hazards during operation, such as tipping over. This concept is essential in machinery design and operation, ensuring that excavators can perform their tasks safely while maintaining control and stability.