Right, the 4 exams are bascially the IR theory minus credited subjects.
Full IR theory for PPLs are 7 exams:
— Air Law,
— Aircraft General Knowledge — Instrumentation,
— Flight Performance and Monitoring,
— Human Performance,
— IFR Communications.
— Meteorology,
— Radio Navigation,
CPLs get credited for Meteorology and Radio Nav, therefore only 5 exams:
— Air Law,
— Aircraft General Knowledge — Instrumentation,
— Flight Performance and Monitoring,
— Human Performance,
— IFR Communications.
ATPLs get also credited for instrumentation, therefore the 4 remaining exams are:
— Air Law,
— Flight Performance and Monitoring,
— Human Performance,
— IFR Communications.