Most candidates who struggle on the INRAT didn't run out of knowledge. They ran out of time, or got rattled by the question style, or spent too long on a GFA they'd barely practiced. The content wasn't the problem.
Here's what I tell students before they book their exam date.
The basics
The INRAT is a 50-question multiple-choice exam administered by Transport Canada. Each question has four options. You need 35 correct answers to pass — that's 70%. Here's exactly how the scoring works. You have three hours.
Three hours sounds like a lot. It isn't, especially if you get stuck on the chart and GFA questions. Time yourself on practice exams beforehand, not just to study, but to understand your pacing.
You write at a computer in a Transport Canada-designated exam centre. You can flag questions and come back to them — use that. If something isn't clicking, mark it, move on, and take another pass at it later with the easier questions out of the way.
The 13 categories
Questions are drawn from 13 subject areas. Transport Canada doesn't publish the exact weighting, but after seeing a lot of these exams, some categories show up far more than others — Meteorology and Instrument Approaches consistently have the highest question density.
| Category | What you need to know |
|---|---|
| Air Law & Airspace | CARs, airspace classes, rules of the air |
| Meteorology | GFA interpretation, icing, turbulence, fronts |
| Instrument Approaches | ILS, VOR, NDB, RNAV; minimums and missed approach |
| Enroute & Holding | Holding entry, timing, wind correction |
| Departure Procedures | SIDs, obstacle departure procedures |
| Navigation | VOR, DME, GNSS, ADF, RMI |
| Human Factors | Spatial disorientation, hypoxia, fatigue |
| Instrument Systems | Pitot-static errors, gyroscopic instruments |
| Flight Planning | IFR fuel requirements, alternates, NOTAMs |
| Communications | IFR phraseology, frequency management |
| Two-Way Comm Failure | 7600 procedures, route/altitude rules |
| Aeronautical Charts | LO charts, approach plates, TAC |
| Aircraft Performance | Density altitude, climb performance, W&B |
What the questions are actually like
The INRAT doesn't reward memorization as much as people think. The questions are written to test whether you understand the concept, not whether you can recall a specific number.
A lot of questions are scenario-based. You'll be given a situation — an aircraft in a specific condition, a weather scenario, an approach segment — and asked what the correct action or answer is. If you've only studied facts and not applied them, these will trip you up.
The wrong answers are well-written. They're plausible enough that a candidate who half-understands the topic will pick them. The correct answer is usually the one that's technically precise, not just generally true.
Chart and GFA questions
Some questions require you to interpret a chart, approach plate, or GFA. You'll have access to reference material during the exam — Transport Canada provides this — but you need to know how to use it efficiently. Spending ten minutes on a single chart question will hurt your time on everything else.
Practice reading GFAs and LO charts before the exam — not as a one-time review, but enough that the format stops slowing you down. They're consistent once you know what you're looking for. That familiarity is what buys you time.
The two-way comm failure questions
Comm failure trips up more candidates than almost anything else. The rules are specific and the exam goes after every edge case — what altitude, which route, when to start the approach. There's no room for "I think it's something like..." here. Know the 7600 procedures cold.
What exam day looks like
Book through a Transport Canada-designated exam centre. Bring valid photo ID. No personal materials allowed — no notes, no textbooks. The centre provides any reference material that's permitted, so don't try to bring your own copy of anything.
The computer interface is simple. Flag questions you're unsure about and come back. Don't leave anything blank — there's no penalty for guessing, so take a shot at everything before you submit.
Results are on the screen the moment you finish. You won't be waiting around.
One thing most candidates underestimate
The three-hour duration. Most practice sessions are 20 or 30 minutes, maybe 45 if you're being serious. Three hours of sustained focus is a different thing entirely. Around the two-hour mark, your attention starts to slip. Questions that would've been easy an hour ago get second-guessed.
Do at least two full-length timed exams before the real date. Not for the content — for the experience of being mentally sharp at the 2.5-hour mark when you still have 12 questions left.
Practice with real INRAT questions
476 questions across all 13 categories, with a timed 50-question exam simulator that runs the full 3 hours.
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