Ontario Air Brake Z Test Practice Questions - Ontario Air Brake (Z Endorsement) Knowledge Test Exam

What starting condition is used for the Ontario low air-pressure warning test?

Compressor removed and tanks empty Pressure above 90 psi with ignition on, then pump the brake pedal down Pressure below 20 psi with gauges covered Caged spring brakes while driving

Correct Answer:

Pressure above 90 psi with ignition on, then pump the brake pedal down

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