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Front #133
ABTH 103.2.1
What is the preferred option to limit the number of dynamic brake axles?
Cut out basic-range dynamic brakes on trailing locomotives.
Cut out extended-range dynamic brakes on trailing locomotives.
Cut out extended-range dynamic brakes on the lead locomotive.
Cut out basic-range dynamic brakes on the lead locomotive.
Answer: Cut out basic-range dynamic brakes on trailing locomotives.Feedback: Trains have a maximum limit of dynamic brake axles that can be used. When a situation requires the engineer to cut out dynamic brakes, the first option (if available) is to cut out basicrange dynamic brakes on trailing locomotives. Basic-range dynamic brakes lose their effectiveness at a higher speed than extended-range dynamic brakes.