Semester in Trondheim

Hi,
In fall 2018 I will be doing a semester in Trondheim at NTNU in mechanical engineering through a partnership between my university and NTNU. Because of this partnership, I have to select four classes in english. I heard that most of the classes lectured in english were master's classes. I was wondering how is the difficulty of NTNU in master's degree classes? Because it is a semester abroad, I only have to pass these classes no matter what grade I got. But I don't know how hard are the classes and what is the pass/failling grade in Norway? Is it approximately 50-60%? I'd like to hear you about that because the difficulty of the semester is concerning me.

Thanks,

Hi I think it's good to check their official website www.ntnu.no so you can see their requirements and how they run their classes, there must be an info there.