Information Perception & Processing (IPP) makes you monitor three analog gauges while running serial mental arithmetic at the same time. It is one of the hardest CASE modules to find practice for elsewhere; CadetPrep has a fully playable simulation of it.
Most candidates meet IPP for the first time in the real exam, because practice material for it is hard to find.
On CadetPrep you can train IPP with a fully playable live simulation that follows the real exam flow.
Three gauges sit in a triangle: left, top and right. Each gauge is assigned a random letter key, revealed one by one at the start (e.g. LEFT: B, UP: A, RIGHT: S).
When a needle enters the red zone and locks, you reset that gauge by pressing its letter. A wrong letter counts as an error and pops a one-second hint showing all three assignments.
Careful: the assignments are not fixed — every so often one gauge gets a new letter, announced by a short on-screen banner.
A rule banner appears in the centre first: Add upcoming numbers, Subtract upcoming numbers, or their “double” variants — together with a start number.
Then an operand flashes briefly and disappears; you apply the rule and hold the result in memory. After a blank gap of a few seconds the input field opens; you type the result and press Enter. The running total always stays within 0–99.
On a correct answer the chain continues from the current total; the rule changes at intervals and each new rule is announced with the banner again.
Gauge resets and arithmetic answers feed one shared pool: score = correct / (correct + wrong). Timed-out answers count as both wrong and missed. Higher difficulty speeds up both the needles and every phase of the arithmetic flow.
In the real exam the module runs as three back-to-back sections with no break. The practice section is not scored.
| Section | Duration | Scored | On CadetPrep |
|---|---|---|---|
| Practice | 2 min | No | Available at all difficulty levels |
| Level 1 | 3 min | Yes | EASY – MEDIUM |
| Level 2 | 10 min | Yes | MEDIUM – HARD |
The CadetPrep mock exam mirrors this exact flow; Level 1 corresponds to the EASY–MEDIUM pace on the platform, Level 2 to MEDIUM–HARD.
Do not jump to the answer before reading the rule line.
During the wait phase, keep the rule active in your head.
Avoid memorizing only the last number instead of the rule transformation.
IPP is the most fundamental module where you run arithmetic and track visual stimuli at the same time — and the one candidates struggle with most. With regular, plentiful practice it becomes very manageable.
It is part of the module's design: at intervals one gauge gets a new letter, announced by a short on-screen banner. Catching that banner is part of the task.
When a needle enters the red zone and locks, pressing that gauge’s assigned letter resets it. A wrong letter counts as an error.
The running total always stays within 0–99: addition rules start from small numbers, subtraction rules from large ones.
Rule accuracy first. A misread rule poisons several answers in a row; speed comes on its own with practice.
A 2-minute practice section (not scored), 3 minutes of Level 1 and 10 minutes of Level 2 — played back to back.