When the door close train line MCB is tripped, which point is true?

When the door close train line MCB (Motor Control Breaker) is tripped, the system is designed to prioritize safety. In this scenario, the correct understanding is that the doors will remain in their current position. This is a critical safety feature to prevent any unintended door movements that could result in accidents or injury.

When the MCB is tripped, it indicates a fault or potential issue with the door mechanism, prompting the system to halt any operations that would close or open the doors automatically. This ensures that no further actions can take place until the issue is resolved, thereby maintaining the safety of passengers and crew.

The other options are not aligned with the safety protocols established in such situations; doors cannot be bypassed without proper checks, they do not close automatically because the system is halted, and operations do not continue as usual due to the tripping of safety mechanisms. The tripping of the MCB is a clear signal that immediate action is required to address the fault before resuming normal operations.