On the actual exam, say if you're doing well on one category, but not in another, does the difficulty level of one go up while the other goes down?

For example, lets say I got the first 7 questions (all SC or CR) correct. Afterwards, I get 4 RC questions in a row wrong. Does this mean, the next SC or CR question which is to follow, is easier compared to the first ones that were given?

I hope I made sense.

Hopefully someone can help answer this..