Up until this point, you will have been operating according to Visual Flight Rules (VFR). To be able to fly in Instrument Meteorological Conditions (IMC), you need an Instrument Type Rating. The written aspect of this is an examination consisting of general IFR questions in addition to questions based on a simulated IFR flight. 50 questions in 3 hours with 70% pass mark.
ACE can help you focus on known weak knowledge areas, such as IFR departures from uncontrolled airports, IFR arrival procedures and procedures to be followed when instruments fail while conducting an approach. Moreover, ACE helps its students stay up to date with latest changes - something particularly important in the IFR world.