20
10
30
None of these
Answer is Right!
Answer is Wrong!
The correct answer is A. 20 minutes.
According to the Indian Railway Manual, Rule 10.12.1, “On DL in 20 minutes gap trains must be started during total interruption of communication.”
This rule is in place to ensure the safety of passengers and train staff. If there is a total interruption of communication, it is important to start trains at regular intervals so that they do not get too close together. This will help to prevent accidents.
The other options are incorrect because they are not the correct time interval for starting trains during a total interruption of communication.