Metropolitan Transportation Authority (MTA) Assistant Conductor Practice Test

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What does an End of Block sign look like?

A white rectangle with End of Block written in it
A yellow diamond sign with a large S in the middle of it
A red diamond with STOP in the middle of it
One Yellow light with a circular A sign underneath it

The correct answer is: A white rectangle with End of Block written in it

The End of Block sign is represented by a white rectangle that explicitly states "End of Block" within it. This sign serves a crucial function in signaling to train operators that they have reached the end of a designated block section, which is important for train scheduling and safety. The clear and straightforward design ensures that it is easily recognizable and understood, allowing conductors to respond appropriately to the signaling. In contrast, the other signs listed serve different purposes. The yellow diamond sign with a large S typically indicates a speed restriction or specific operational instruction. A red diamond with "STOP" indicates a mandatory halt, signaling that the train must come to a complete stop at that point. Lastly, the yellow light with a circular A underneath denotes other operational statuses or signals, but it does not signify the end of a block. Each of these signs is vital in train operations, but none convey the specific message that the End of Block sign does.