55 mm
65 mm
75 mm
l00 mm
Answer is Right!
Answer is Wrong!
The correct answer is B. 65 mm.
Cant excess is the difference between the cant of the outer rail and the cant of the inner rail. The cant of a rail is the amount by which it is raised above the level of the track. The cant excess is used to keep trains from derailing when they are going around curves.
The limiting value of cant excess for Broad Gauge is 65 mm. This means that the cant of the outer rail cannot be more than 65 mm higher than the cant of the inner rail. If the cant excess is too high, the train may derail.
The other options are incorrect. Option A is 55 mm, which is too low. Option C is 75 mm, which is too high. Option D is 100 mm, which is much too high.
I hope this helps!