What is the maximum speed of a train while view is obstructed due to thick and foggy weather? A. Normal speed B. 15 kmph C. 30 kmph D. 60 kmph

The correct answer is B. 15 kmph.

The maximum speed of a train while view is obstructed due to thick and foggy weather is 15 kmph. This is because in thick fog, visibility is very poor and the driver may not be able to see the track ahead. If the train is traveling at a high speed, it may not be able to stop in time if there is an obstacle on the track. This could lead to a derailment or other serious accident.

Option A is incorrect because it is not safe to travel at normal speed in thick fog. Option C is incorrect because it is not safe to travel at 30 kmph in thick fog. Option D is incorrect because it is not safe to travel at 60 kmph in thick fog.