When the engine is at operating RPM, the pressure should build up to 85 to 100 psi within ____in a dual air systems.
A. 45 seconds
B. 1 minute
C. 2 minutes
Answer: A. 45 seconds
CDL MCQ
CDL
When the engine is at operating RPM, the pressure should build up to 85 to 100 psi within ____in a dual air systems.
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