In Automatic areas when there are no signals and communication, the speed of the train is ________ kmph while working on T/B 912 during day. A. 25 B. 20 C. 15 D. 10

The correct answer is D. 10 kmph.

In Automatic areas when there are no signals and communication, the speed of the train is limited to 10 kmph while working on T/B 912 during day. This is to ensure the safety of the train and its passengers.

Option A is incorrect because the speed limit is 10 kmph, not 25 kmph.

Option B is incorrect because the speed limit is 10 kmph, not 20 kmph.

Option C is incorrect because the speed limit is 10 kmph, not 15 kmph.