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Front #29
ABTH 100.9A
There are two methods used to conduct a Brake Pipe Leakage Test. In both methods, you need to charge the brake system to within ____ of the regulating valve as indicated by a gauge or device at the rear of the train.
Answer: 15 psiFeedback: Regulating valve settings: - Freight service = 90 psi - Passenger service = 105 psi - The pressure at rear of train must be within 15 psi of the pressures listed above. - The pressure at rear of the train must be determined by one of the following: A gauge verified to be accurate, an ETD, or a DP locomotive consist.