Metropolitan Transportation Authority (MTA) Assistant Conductor Practice Test

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What does a Switch allow?

Movement between two tracks
Deceleration of train speeds
Communication between stations
A buffer zone for trains to park

The correct answer is: Movement between two tracks

A switch, also known as a turnout, is a mechanical installation that enables the movement of trains from one track to another. It consists of a set of connected rails that can be adjusted to direct the train onto the desired track. This is essential for railway operations as it facilitates routing trains efficiently, allowing them to switch tracks for various reasons such as avoiding obstacles, merging onto different lines, or accessing different platforms at a station. The other options do not accurately represent the function of a switch; for instance, switches do not control speed or serve as communication systems and are not designed as parking zones for trains.