Depends on how you prepare. If you (like 90% of students), study just the day before, waking up till late at night, then you may find it difficult. Although, some subjects may be easier to study, since after all, not more than 2 chapters are included.
It also depends on the subject (whether it is complex/difficult or easy) and also if you have attended the classes properly. Last moment mugging up may not always yield the best of results, but hey, being engineers, nothing is impossible for us, and you may still manage to pass!
So yes, compared to Models, the CT’s are easier, since more chapters are included in Models.