Commercial Driver's License

Category - Standard Driving

In both single commercial vehicles and combination commercial vehicles, compressed air is stored where?
  1. In the service and emergency lines
  2. In the air compressor
  3. Behind the pressure gauges
  4. In the main reservoirs
Explanation
Answer: D - Compressed air in both single and combination vehicles is stored in the main reservoirs. The main reservoirs are also commonly known as the air storage tanks. The air stored in these tanks is produced by the air compressor. The service and emergency lines deliver the air to where it is needed.
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