Red Seal Heavy Equipment Operator (Excavator) Practice Exam

Explain the term “stick angle” in excavator operation.

1. The angle between the boom and the ground.

2. The angle between the stick and the bucket.

3. The angle between the stick and the ground, affecting digging depth and reach.

4. The angle of the tracks in relation to the surface.

The correct answer is: The angle between the stick and the ground, affecting digging depth and reach.

"Stick angle" refers specifically to the angle formed between the stick (the arm that connects the boom to the bucket) and the ground. This angle plays a crucial role in determining both the digging depth and the reach of the excavator. When the stick is angled downward, it increases the effective depth that can be achieved when digging, allowing the operator to excavate deeper into the ground. Conversely, when the stick is angled upward, the reach may be extended, allowing the excavator to place material further away from its position. In excavator operation, understanding the stick angle is essential for maximizing efficiency and precision during digging tasks. For example, when the operator adjusts the stick angle correctly, they can optimize the machine's performance to suit the specific requirements of the job, whether it's digging a trench, backfilling, or lifting heavy materials. The other options relate to different aspects of excavator operation but do not accurately define "stick angle." Understanding how the stick angle affects operation helps operators make informed decisions about their movements and enhance productivity on job sites.