Apply for an Air Traffic Controller or Flight Service Specialist job at NAV CANADA and the first real filter is a timed online aptitude screen — roughly 30 minutes that decide whether a human ever reads your file. NAV CANADA itself says little beyond "timed, about 30 minutes." This page sets out what converging evidence says the screen contains, module by module, and lets you practise every part of it in your browser, free, with items that are procedurally generated — never lifted from anyone's test.
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4 sections · 17 timed minutes in the full mock · 8 free untimed items per module per day, every day, with full worked explanations.
OPEN THE NAV CANADA TRAINERNAV CANADA doesn't publish the battery. Piecing together three independent prep-industry vendors and first-hand candidate reports (r/NavCanada is unusually candid), the screen consistently includes four kinds of task: an inductive grid-rule test (six example grids sorted into two groups by a hidden rule — you classify a new one), a deductive grid-logic test (a Latin-square style grid with one missing cell), a spatial orientation test built on two flight instruments (a gyro compass and a relative-bearing needle), and a short concentration test (rapid yes/no letter-and-dot decisions).
Timing is the part candidates underestimate. The whole screen fits in about half an hour, sections are individually timed, and instructions between sections are untimed — you control when each section starts. Our mock replicates exactly that rhythm.
Search forums and you'll see the screen called a "FEAST test." FEAST (First European Air Traffic Controller Selection Test) is EUROCONTROL's selection suite; NAV CANADA's screen is not literally FEAST, but the task families overlap heavily — grid deduction, spatial reasoning, monitoring-style speed tasks. If you arrived here searching "FEAST test NAV CANADA," the practical answer is: the modules on this page are the kinds of task you'll face, whatever the vendor label says.
Candidate reports consistently describe a long re-application wait (commonly cited as a year) after a failed screen — we can't verify the exact policy, but the asymmetry is real: the test costs you nothing to prepare for and a lot to fail. Application waves also follow FIR posting batches, so when a wave opens, the time to already be fluent is before you apply.
| module (simulated) | what it tests | reported timing | fidelity |
|---|---|---|---|
| Inductive grid-rule (cls-style) | Spotting the hidden rule that sorts example grids into two groups, then classifying a new grid | 6 min | reconstructed |
| Deductive grid logic (scales lst / gapChallenge) | Latin-square deduction — which symbol belongs in the ? cell | 6 min | matches published spec |
| Spatial orientation (scales ndb-style) | Reading a gyro heading + relative-bearing needle and answering compass directions | 3 min | reconstructed |
| Concentration (scales e3+-style) | Rapid yes/no decisions — is it an E with exactly three dots? | 2 min | matches published spec |
"Matches published spec" = the module follows the test publisher's own public task description. "Reconstructed" = built from converging third-party descriptions; format may differ in detail. Deep-dives on how every module works live on the module guide.
Every module in the reported battery is simulated — the full mock runs all sections back-to-back with untimed instruction pages between them, like the real portal.
Employers change vendors and battery composition without notice. Treat every battery list on the internet — ours included — as a best-available reconstruction, and always do the official practice items your test invitation links.
Converging vendor and candidate evidence points to four task families: inductive grid-rule classification, deductive grid logic, instrument-based spatial orientation, and a speeded concentration task, in a ~30-minute individually-timed battery. NAV CANADA officially confirms only that it is timed and about 30 minutes — treat any battery list, including ours, as a best-available reconstruction.
Not literally — FEAST is EUROCONTROL’s European ATCO selection suite. But the task families overlap heavily, which is why forums use the names interchangeably. Practising grid deduction, spatial orientation and monitoring-style speed tasks prepares you for either.
NAV CANADA publishes no pass rate. What’s clear from candidate reports is that the screen filters a large share of applicants and that unprepared candidates are most often surprised by the time pressure, not the task difficulty. We deliberately don’t invent a pass-rate number.
No — and be suspicious of anyone selling "real questions." Live test content is confidential; using it would be cheating and reproducing it is unlawful. Every SkyAptitude item is procedurally generated from public task descriptions and brute-force verified to have exactly one defensible answer.
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