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Listening Quiz: Thiết Kế Mạch Thủy Lực Cho Máy Công Tác Di Động – Medium Level
Th10 13, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Kỹ sư cơ khí (English for Mechanical Engineer)
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1.
What are Daniel and Mia mainly discussing?
How to repair a leaking engine in a mobile work machine
How to replace electrical parts in a machine control panel
How to train operators to use heavy equipment safely
How to design a hydraulic circuit for a mobile work machine
Explanation:
The conversation is about choosing components for a hydraulic circuit, including the pump, valves, heat exchanger, pressure relief valve, and hydraulic fluid.
2.
Why does Daniel recommend a variable displacement pump?
It saves energy by adjusting flow to the load
It is cheaper to install than other pumps
It prevents the hydraulic fluid from freezing
It can reduce noise during operation
Explanation:
Daniel says a variable displacement pump is best because it saves energy by adjusting flow to the load.
3.
What does Daniel say the pressure relief valve does?
It protects the system from high pressure
It improves the fluid’s anti-wear properties
It provides precise movement
It keeps the oil temperature low
Explanation:
Daniel explains that a pressure relief valve protects the system from high pressure.
4.
What kind of hydraulic valves do Daniel and Mia decide to use for precise movement?
Proportional valves
Check valves
Directional valves
Needle valves
Explanation:
Daniel says they should use proportional valves for precise movement.
5.
What is the most likely result of following Daniel’s plan for the hydraulic circuit?
The pump will become fixed displacement
The machine will no longer need hydraulic fluid
The machine will use more energy and move less accurately
The machine’s performance will improve
Explanation:
Mia says the plan will improve the machine’s performance, and the chosen components are all described as beneficial for efficiency, control, temperature, pressure, and wear.
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