In a delayed within a block in CTC limits when PTC is not in effect, which signal condition allows you to proceed?

In a delayed within a block in CTC limits when PTC is not in effect, which signal condition allows you to proceed?

• A. The next signal shows a stop indication
• B. The next signal is visible and displays a proceed indication
• C. The next signal is unclear
• D. There is no next signal

Answer: (B)

Within CTC limits, when PTC isn’t in effect, train movement is governed by signal indications. You may proceed only if you can see the next signal ahead and it shows a proceed (clear) indication. This confirms the route ahead is clear and that you’re authorized to move into the next block. If the next signal shows stop, you must not proceed; if it’s unclear, you can’t determine safety to move; and if there’s no next signal, there’s no authorized indication to proceed.

Within CTC limits, when PTC isn’t in effect, train movement is governed by signal indications. You may proceed only if you can see the next signal ahead and it shows a proceed (clear) indication. This confirms the route ahead is clear and that you’re authorized to move into the next block. If the next signal shows stop, you must not proceed; if it’s unclear, you can’t determine safety to move; and if there’s no next signal, there’s no authorized indication to proceed.