How to Pass the INRAT Written Exam on Your First Try

Most candidates who fail the INRAT didn't skip studying. They prepped for the wrong exam — usually the FAA written — or they drilled questions without understanding why they got things wrong. Both habits will put you on the wrong side of 70%. If you're coming straight from a PPL, understand that the INRAT is not just a harder PPL written exam — the content shifts significantly.

What you're dealing with

50 multiple-choice questions, administered by Transport Canada at a designated exam centre. You need 35 right to pass — that's 70%. Each question is worth 2%, no partial credit, no penalty for guessing. Leave nothing blank.

Three hours sounds like plenty until you're staring at a GFA interpretation question followed by a non-standard holding entry. Pace yourself. The exam doesn't reward rushing.

The 15 categories

Questions come from 15 subject areas. Transport Canada doesn't publish the weighting, but Meteorology and Instrument Approaches show up more than most categories. If your time is limited, start there.

Read the TP 691E first

Transport Canada publishes the official study 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 try to memorize it. Read it to understand it. The exam asks you to apply concepts, not recite them. A student who actually understands holding entry logic — why you fly a parallel versus a teardrop — will get those questions right every time. Someone who memorized "parallel = northwest quadrant" will get burned by a question worded slightly differently.

Practice questions are for finding gaps, not building knowledge

Once you've read the study guide, start drilling questions — but use them as a diagnostic, not as your main study tool. Your score by category tells you exactly where your understanding is thin. See which INRAT topic areas cause the most wrong answers to know where to focus first.

Most people just do random mixed practice until exam day. The problem is you end up confident in what you already knew and blind to what's actually costing you marks. I've watched students walk into the exam with 80% overall on practice questions and still fail because two categories were sitting at 50% and they never checked. That's 8 or 10 marks gone before they even sit down.

IFRTEST.ca tracks your accuracy per category automatically. 513 questions across all 15 areas, with an explanation for every answer.

Drill the categories where you're weak

Any category below 70% — go back to the TP 691E, re-read that section, then do a focused drill. When you get a question wrong, don't just note the right answer. Figure out why each of the other three options is wrong. That's where the actual learning is, and it's the step most people skip.

Aim for 80% on practice before you book the real exam. You want a buffer. Exam nerves and slightly different question phrasing can each knock a few points off. 80% in practice usually means 75%+ on the day. That's a comfortable pass.

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 straight is something you have to train. Most study sessions are 20-30 minutes. That's a completely different mental task. Around the two-hour mark your attention drops and questions that were obvious at the start start looking ambiguous.

How long does prep actually take

Somewhere between 20 and 40 hours for most people. If you've been flying IFR regularly — cross-country flights, actual IMC, holding procedures — you're probably closer to 20. If you're coming straight from your PPL with limited instrument time, budget 40.

Four weeks works well for most people. Here's what the schedule looks like:

• Week 1 — read the TP 691E cover to cover, then run a baseline practice session to see where you stand
• Week 2 — focused drills on the two or three categories where you scored worst
• Week 3 — mixed practice across all categories, first full 3-hour timed simulation near the end of the week
• Week 4 — full simulations every day, patch anything still under 75%

The mistakes that actually cost people the exam

Studying FAA material. Search "IFR written exam prep" and half the results are for the American FAA exam. The airspace classifications, regulatory references, and procedures are different enough that FAA-focused content will actively mislead you on INRAT questions. Class B airspace in the US is not the same as Class B in Canada. If the resource cites FARs instead of CARs, close the tab.

Avoiding GFA and chart questions. They're intimidating, so people skip them during study and then get surprised when three or four show up on the exam. These questions follow consistent patterns. GFA valid periods, icing levels, ceiling and visibility encoding — all learnable, but only if you've actually practised reading them before exam day.

Treating wrong answers as trivia. Noting the right answer and moving on isn't studying. You need to understand why the other three options are wrong. The INRAT distractors are written to catch common misunderstandings. If you can't explain why B is wrong, you're going to pick B on a similar question worded differently.

On exam day

Before you book, make sure you know when you're actually ready to book the INRAT. The short answer: 80% consistently across multiple full simulations, with no single category below 70%. A single good session is not the signal.

Bring valid government-issued photo ID — two pieces, one with a photo. No personal materials allowed — the exam centre provides what's permitted. If a question stops you, flag it and keep moving. Don't sit on one question for five minutes while the clock runs. Come back to it. And don't second-guess answers without a real reason — your first read is usually right.

Results are immediate. You walk out knowing your score.