If a Truck Brake System Is Functioning Properly,when Should the Low

question 29

Multiple Choice

If a truck brake system is functioning properly,when should the low air pressure warnings (buzzer and light) be illuminated

• A) pressure drops below governor cut-out
• B) pressure drops below governor cut-in
• C) pressure drops to between 70-60 psi (4.8 - 4.1 bar)
• D) pressure drops to tractor protection valve trip-out pressure

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