Which examines you the ability to solve real problem rather than recite textbooks and PYP
My supervisor once gave an example of a student who's CAP is 3.99 (4 max) and failed to complete his FYP in 4 years. He changed a few supervisors and FOE gave him a special extension of 1 year of study (normal students can only extend his study for the maximum of 2 years) and he still failed it. My supervisor said this student is good at finding "shortcuts" and reciting past year paper, but not at all good at understand complex issues, nor have the perseverance or patience to complete some relatvie simple but tidous task.
Frankly speaking it is very common that the students with the highest CAP are not the best students in the practical world. Loot at the the NUS course structure: Will Einstein get A for sth like Law and Human Resource Management?