Metropolitan Transportation Authority (MTA) Assistant Conductor Practice Test

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What does an Approach Restricting signal look like?

  1. One Yellow light with a circular A sign underneath it

  2. A Yellow Squared sign with an A in the middle of it

  3. A yellow diamond sign with a large S in the middle of it

  4. A red diamond with STOP in the middle of it

The correct answer is: One Yellow light with a circular A sign underneath it

The description of an Approach Restricting signal is defined by specific visual characteristics that communicate important instructions to train operators. The correct representation is one yellow light accompanied by a circular sign featuring an "A" underneath it. This signal indicates that a train must reduce speed and be prepared to stop at the next signal. The "A" signifies "Approach," while the yellow light serves to alert the crew that caution is required as they approach a signal that may require them to take care or stop. This combination of elements clearly signals to the operator what action is necessary, ensuring safety and compliance with operational protocols. Understanding these signals is crucial for maintaining safe train operations, especially in areas with multiple signals and complex track layouts.