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Front #144
ABTH 103.3B
A crew pulling into a siding stops to meet another train. When operating conditions allow, increase brake pipe reduction to at least ___ psi.
20
26
No brake pipe reduction is needed if the independent brakes can hold the train stationary.
Answer: 15Feedback: Making a 15 psi reduction will ensure an accelerated service release when air brakes are released. The reduction also allows the engineer to verify pressure rises at the rear when releasing brakes, validating that air is flowing through the train.