Heavy Duty Equipment Technician Red Seal Exam Prep · Question
Which type of heavy-duty truck suspension component often uses a levelling valve to maintain a consistent ride height regardless of load changes?
Air bag suspensions, commonly found on heavy-duty trucks, utilize levelling valves to add or release air from the air springs, thereby maintaining a constant ch
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Question: Which type of heavy-duty truck suspension component often uses a levelling valve to maintain a consistent ride height regardless of load changes?
Answer options:
- Leaf spring suspension
- Coil spring suspension
- Torsion bar suspension ✅ Air bag suspension
Correct answer: Air bag suspension
Explanation: Air bag suspensions, commonly found on heavy-duty trucks, utilize levelling valves to add or release air from the air springs, thereby maintaining a constant chassis height irrespective of variations in vehicle load.
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