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AhaBulb: Stuff Everyone Should Know · ahabulb.com/cdl-air-leak-rate-limit

In the applied leakage test, how much air may a combination vehicle lose in one minute?

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  1. 1 psi
  2. 10 psi
  3. 4 psi

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References

  1. Texas Commercial Driver's License Manual (DPS) www.dps.texas.gov/internetforms/Forms/DL-7C.pdf Checked 2026-10-10.

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