Test guides / FII
FAA KNOWLEDGE TEST GUIDE
CFII written test (FII)
The Flight Instructor Instrument Airplane (FII) knowledge test is required to add an instrument rating to a flight instructor certificate (CFII). It combines instrument knowledge with how to teach it.
AT A GLANCE
- Test code
- FII
- Questions
- 100 multiple choice (3 options each)
- Time allowed
- 2 hr 30 min
- Passing score
- 70% (70 of 100)
- Minimum age to test
- 16
- Results valid for
- 24 calendar months
- Where
- PSI testing centers (about $175)
What the FII covers
- ▸Instrument regulations and instructor endorsements
- ▸Instrument approach, departure and enroute procedures
- ▸Navigation systems and flight instruments
- ▸Teaching instrument flying: common student errors and how to correct them
- ▸IFR weather and emergency procedures
What you need to take it
- Authorization: Check the FAA Airman Knowledge Testing Matrix for the current authorization requirement before you book.
- ID: a government-issued photo ID with your date of birth, signature and address.
- FAA Tracking Number (FTN): create one in IACRA before you schedule with PSI.
How to prepare
- ✓Review your instrument knowledge first — much of the test is instrument material seen from the instructor’s side.
- ✓Know the instrument-related endorsements and when an instructor must give them.
Frequently asked questions
How many questions are on the CFII written test?
The FII test has 100 scored multiple-choice questions, each with three answer choices. A few extra unscored questions may be included; they don't count for or against you.
How long is the FII test?
You have 2 hr 30 min, including time for any unscored questions.
What score do I need to pass the FII?
70% — at least 70 of 100 correct.
How long are my FII results valid?
A passing result is valid for 24 calendar months: you need to finish the practical test (checkride) within that window (14 CFR 61.39).
What do I need to bring to the testing center?
A government-issued photo ID showing your date of birth, signature and address, your FAA Tracking Number (FTN) from IACRA, and your test authorization: check the FAA Airman Knowledge Testing Matrix for the current authorization requirement before you book.
What happens if I fail?
If you fail, you can retake the test after an authorized instructor gives you additional training in the areas you missed and signs a retest endorsement (14 CFR 61.49). There is no required waiting period, but you pay the test fee again.
How much does the test cost?
The FAA says knowledge test centers charge about $175. You book and pay through PSI, the FAA’s testing provider.
Study a little every day
AeroPrep gives you three FAA-style FII practice questions a day for free, with explanations and FAA references, plus a Logbook that shows which topics need work. Pro ($9.99/month) adds unlimited practice and unlimited timed exams.
Start free practice →Test formats are from the FAA Airman Knowledge Testing Matrix and 14 CFR Part 61. The FAA updates these from time to time, so confirm details on the current matrix before you book. AeroPrep questions are written in the style of the FAA knowledge tests; they are not actual test questions. AeroPrep is not affiliated with the FAA.