I suggest that if you want to take the exam, you'd better ask a piano teacher from Shanghai Conservatory of Music to help you. Although it will cost you some money, you may be more sure. Please refer to. Good luck!
Generally speaking, the grading examination is also to let candidates wait for the venue and then pass one by one. But I'll give you a trick, because there are many students admitted, and the invited teachers won't listen to the whole song. You should practice the first half of the music and try to do well in the exam. But sometimes you play so well that the teacher keeps asking you to play. In short, be prepared.