When a train operating in a specified direction clears the limits of its line 2 authority, the line 2 authority is?

When a train operating in a specified direction clears the limits of its line 2 authority, the line 2 authority is?

• A. Fulfilled
• B. Cancelled
• C. Extended
• D. Expired

Answer: (A)

Line authority defines permission to move in a specific direction up to a defined limit. When the train clears those limits, the authorized movement is completed, so the line 2 authority is fulfilled. There’s no further authority for that movement unless a new instruction is issued. If the authority were canceled, extended, or expired, it would apply differently—cancellation ends the permission before or at the limit, extension pushes the limit farther, and expiration would end the authority by time rather than by reaching the limit.

Line authority defines permission to move in a specific direction up to a defined limit. When the train clears those limits, the authorized movement is completed, so the line 2 authority is fulfilled. There’s no further authority for that movement unless a new instruction is issued. If the authority were canceled, extended, or expired, it would apply differently—cancellation ends the permission before or at the limit, extension pushes the limit farther, and expiration would end the authority by time rather than by reaching the limit.