What is important to verify when two switches are lined for a crossover?

Answer: B — Both switches must align for crossover or straight move

When two switches are lined for a crossover, it is crucial to ensure that both switches align correctly. This is because crossover operations involve directing trains from one track to another, and if one switch is not properly aligned, it could lead to a derailment or other unsafe conditions. Both switches must be in the right position to safely guide rolling stock from one track to the alternate path without obstruction or misalignment. Proper alignment is essential for the safety and efficiency of rail operations. If only one was aligned correctly, it would not provide the necessary path for the train, creating a significant safety risk. Thus, ensuring that both switches are in the correct position is paramount for successful crossover operations.