Most candidates who fail the INRAT don't fail because they didn't study. They fail because they studied the wrong way — or the wrong material entirely. Here's what actually works.
What you're dealing with
The INRAT is 50 multiple-choice questions administered by Transport Canada at a designated exam centre. You need 35 correct to pass. Each question is worth 2% — there's no partial credit, and no penalty for guessing, so answer everything.
Three hours sounds generous until you hit the GFA questions and a holding entry problem back to back. Pace yourself.
The 13 categories
Questions come from 13 subject areas. Transport Canada doesn't publish the exact weighting, but Meteorology and Instrument Approaches show up more than most — if you're short on time, that's where to focus.
| Category | Focus area |
|---|---|
| Air Law & Airspace | CARs, airspace classifications, rules of the air |
| Meteorology | Weather theory, icing, turbulence, GFA interpretation |
| Instrument Approaches | ILS, VOR, NDB, RNAV approaches; minimums |
| Enroute & Holding | Holding procedures, enroute navigation |
| Departure Procedures | SIDs, obstacle departure procedures |
| Navigation | VOR, DME, GNSS, ADF, RMI |
| Human Factors | Spatial disorientation, hypoxia, decision-making |
| Instrument Systems | Pitot-static, gyroscopic instruments, errors |
| Flight Planning | IFR flight planning, fuel requirements, alternates |
| Communications | IFR phraseology, lost comms procedures |
| Two-Way Comm Failure | 7600 procedures, clearance rules |
| Aeronautical Charts | LO charts, approach plates, TAC interpretation |
| Aircraft Performance | Density altitude, weight & balance, performance charts |
Read the TP 691E first
Transport Canada publishes the official study and reference guide for the INRAT — it's called TP 691E and it's free on their website. Every topic on the exam is in there. Read it before you touch any practice questions.
Don't memorize it. Read it to understand it. The exam tests whether you can apply the concepts, not recall them word for word. A student who understands holding entry logic will get those questions right. One who memorized a specific answer probably won't.
Practice questions are for finding gaps, not building knowledge
Once you've read the study guide, start drilling practice questions — but use them as a diagnostic, not as your primary learning tool. Your score by category will tell you exactly where your understanding is thin.
Most candidates skip this and just do random mixed practice until exam day. The problem is you end up spending most of your time on categories you already know and not enough on the ones that are actually costing you marks.
IFRTEST.ca tracks your accuracy per category automatically. 476 questions across all 13 areas, with explanations for every answer.
Try 10 INRAT questions free
No account needed. See where your gaps are before you commit to a study plan.
Start Free Practice →Drill the categories where you're weak
For any category where you're scoring below 70%, go back to the TP 691E, re-read that section, then do a focused drill. Review every wrong answer — not just what the right answer was, but why each wrong option is wrong. That's the part most people skip, and it's where the real learning happens.
Aim for 80% in practice before you book the real exam. The buffer matters — exam day introduces nerves and slightly different question phrasing that can knock a few points off.
Run the full exam at least twice before your date
50 questions, 3 hours, timed. Do this at least twice in your final week. Not because the content changes, but because sitting focused for three hours is a skill. Most study sessions are 20-30 minutes. That's a very different experience from what the exam actually asks of you. Your attention drifts around the two-hour mark and answers that seemed obvious at the start become less clear.
How long does prep actually take
Somewhere between 20 and 40 hours for most people. If you've been flying IFR regularly, you're probably closer to 20. If you're going straight from your PPL with not much instrument time, budget for 40.
A four-week plan that works:
- Week 1 — read the TP 691E, take a baseline practice session
- Week 2 — drill the weakest two or three categories
- Week 3 — mixed practice, first full timed simulation
- Week 4 — daily full simulations, clean up any remaining weak spots
The mistakes that actually cost people the exam
Studying FAA material. A lot of what shows up on Google for "IFR written exam prep" is built for the American FAA exam. The airspace classifications, regulatory references, and procedures are different enough that studying FAA content will actively mislead you on some INRAT questions. If the resource references FARs instead of CARs, close the tab.
Skipping GFA and chart questions during study. These are intimidating so people avoid them, then get surprised when three or four show up on the exam. They're learnable — they follow consistent patterns — but only if you've actually practised them.
Treating practice questions as trivia. Getting a question wrong and noting the right answer isn't studying. Understanding why the other three options are wrong — that's studying. The INRAT distractors are well-written. You need to be able to see through them, not just recall the correct letter.
On exam day
Bring valid photo ID. No personal materials are allowed — the exam centre provides what's permitted. Flag anything you're not sure about and come back to it rather than staring at it for five minutes. Don't change answers without a specific reason. Your first read is usually right.
You get your result immediately when you finish. Pass or fail, right there on the screen.
476 INRAT practice questions
Timed exam simulator, readiness dashboard by category, and AI explanations for every answer. Built for the Transport Canada exam, not the FAA.
Try IFRTEST.ca Free →