Walk and Talk
For most students the full experience of RT procedures cannot be fully covered in the air without considerable expense. However the RT test is not particularly stretching with regard to RT chatter for the candidate should know all of that and will have passed the written exam and will have demonstrated that part of their knowledge during training.
To inform pilotho better.
The RT test is this; Assume you are a basic PPL without any additional ratings flying a simple GA single engined aeroplane. The Examiner acts as each controller to whom you speak. You will be given a schematic map of a flight which will start or end at a controlled aerodrome and will route through a MATZ and also a control zone of a particular class - obtain the correct clearance. You will be given a completed pilots navigation log. The test is NOT concerned with your navigation skills! Throughout the flight YOU will decide to WHOM you speak, WHEN and for WHAT REASON by choosing the appropiate service. You will be given a sheet of comms/nav stations with the frequencies and a brief description. You WILL experience a 'DISTRESS' or need to relay such, however prior to the test you will not know which. You will also experience an 'URGENCY' situation. In both cases you will need to cancel each appropiately in order that the flight may be completed. You will also be required to obtain an enroute VDF bearing; QDM/QTE/QDR as you choose. A planned diversion (within the pilots log) also takes place.
It will be assumed that your radio phraseology is of standard. YOU can only prove otherwise! The test is primarily assessing your knowledge of the ATC system and how best to use it. You will be given sufficient time to plan following a briefing. It is the RT preflight planning which in my experience is the weakest element of most candidates. This leads to requesting from the wrong ATC unit an inappropiate service having selected the wrong frequency from a published list. CAP 413 is the guiding document. The schools that send to me their students regularly know the format well and prepare their students. Where this hasn't happened many students struggle with the R/T planning. Be sure that you are prepared well before the day and then it is all very straight forward.
Expect to be with the Examiner at least three hours. The preflight briefing and your planning will take at least one hour. The Test takes anything between thirty minutes and one hour depending on the candidate. The candidate may if they so wish use the full duration of the flight plan time which is something like 1 hour and 45 minutes. Afterward there will be a post flight debrief and paperwork. You must take with you proof of having passed the written exam. A partly completed license application form showing the successful pass is normal.
Hope this has helped.