Excavator Operator Certification Exam Prep · Question
What is the primary function of the hydraulic reservoir in an excavator's hydraulic system?
The hydraulic reservoir serves multiple essential functions: it stores the hydraulic oil for the system, allows for heat dissipation from the oil, and provides
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Question: What is the primary function of the hydraulic reservoir in an excavator's hydraulic system?
Answer options:
- To generate hydraulic pressure.
- To filter the hydraulic oil. ✅ To store hydraulic oil, dissipate heat, and separate air.
- To direct hydraulic fluid to various components.
Correct answer: To store hydraulic oil, dissipate heat, and separate air.
Explanation: The hydraulic reservoir serves multiple essential functions: it stores the hydraulic oil for the system, allows for heat dissipation from the oil, and provides space for air bubbles to separate from the oil, preventing cavitation. It does not generate pressure, primarily filter the oil (though it may have a suction strainer), or directly direct fluid to components; that's the pump and control valves.
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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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