When must a train be prepared to stop at an automatic interlocking signal after passing the distant signal?

Prepare for the CPKC Train Dispatcher Trainee Test with interactive flashcards and multiple-choice questions. Each query is complemented by hints and detailed explanations. Equip yourself for the test now!

A train must be prepared to stop at an automatic interlocking signal after passing the distant signal when its speed is below 25 MPH or drops below that speed. This is crucial for ensuring the safety and efficiency of train operations.

When a train is operating at lower speeds, it has a reduced stopping distance, which means that the crew must remain vigilant and be ready to stop for any signals or conditions that may arise ahead. This rule is in place to mitigate the risks associated with potential obstructions or allowance for train movement adjustments at interlocking locations, where multiple tracks converge or diverge. High-traffic areas often require heightened awareness since mistakes in judgment or delays in response can lead to collisions or other dangerous situations.

In contrast, other conditions mentioned in the options do not universally dictate the necessity for a train to be prepared to stop. For example, while a flashing light at a signal may indicate a certain condition, it is not inherently indicative of a stop requirement compared to the specified speed-related rule. Approaching a station might involve making speed adjustments but does not universally necessitate stopping unless governed by specific signaling. Lastly, stopping on dispatcher orders pertains to communication and instruction but does not automatically require readiness to stop solely based on the state of a signal as

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