Excavator Operator Certification Exam Prep · Question
What is the function of the 'pilot control' system in modern excavators?
Pilot controls (often joystick-operated) use low-pressure hydraulic fluid to control larger hydraulic valves, allowing for smoother, more precise, and less fati
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Question: What is the function of the 'pilot control' system in modern excavators?
Answer options:
- It automatically pilots the machine using GPS coordinates. ✅ It provides precise, low-effort hydraulic control of the machine's functions.
- It controls the engine's speed based on load.
- It alerts the operator to nearby obstacles.
Correct answer: It provides precise, low-effort hydraulic control of the machine's functions.
Explanation: Pilot controls (often joystick-operated) use low-pressure hydraulic fluid to control larger hydraulic valves, allowing for smoother, more precise, and less fatiguing operation compared to purely mechanical linkages.
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Question explanations
- During a final inspection of an excavator, prior to beginning work, an operator notices significant play in th
- An excavator operator is preparing to dig a trench in cohesive soil. To achieve maximum breakout force, what a
- Which control typically governs the arm (or dipper arm) movement for an excavator?
- What condition might require sloping or shoring of a trench less than 1.2 meters (4 feet) deep?
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