Which track arrangement consists of a switch and guard rails that diverts trains from one track to another and is used only for Entrance or Exit?

• A. Interlock
• B. Turnout
• C. Siding
• D. Crossover

Answer: (B)

A turnout is the track arrangement that includes a switch and guard rails to divert trains from one track to another. The switch points guide the wheels onto the diverging path, while the guard rails help keep the train aligned as it leaves the main track. This setup is specifically used for entrance or exit movements, such as when a train joins or leaves a yard or platform track, allowing controlled, directed movement onto a different track.

Interlock isn’t a physical track form; it’s the safety system that coordinates signals and switches to prevent conflicting movements. A siding is a separate track used for storage or staging, not primarily for directing entry or exit. A crossover consists of two turnouts that let a train move between parallel tracks along the route, serving broader track-to-track movement rather than being limited to entrance or exit purposes.