Finland Teoriakoe B common mistakes
Finland Teoriakoe B · Understand the traps and how to avoid them.
At an intersection with no signs or markings, the candidate lets a car from the left go first, or stops unnecessarily, instead of yielding to the vehicle approaching from the right; the same candidate often then applies the right-hand rule to a roundabout entrance that clearly has a yield line and triangle.
Candidates memorise individual signs but never build the default rule in their head, so when no sign is present they freeze or guess. Many also believe 'roundabout = right-hand rule' because the roundabout sign is the only sign they notice.
What to do instead
Learn the hierarchy explicitly: signs and markings first, then the default right-hand rule. Drill picture-free scenarios in words ('T-junction, no signs, car from the right') until yielding to the right becomes the automatic answer when nothing else is present.
On a motorway on-ramp the candidate brakes at the end of the acceleration lane and tries to merge into a gap at 70 km/h while traffic is doing 120 km/h, or crosses the solid line to get onto the motorway earlier.
Ramp merging is rarely practised at theory stage and feels abstract; candidates think of it as 'joining a queue' rather than matching speed to a gap. The acceleration lane is also confused with a normal lane.
What to do instead
Memorise the three-step model: use the full acceleration lane to reach roughly the speed of motorway traffic, indicate, check mirror and blind spot, then adjust into a gap. Traffic already on the motorway has priority; the solid line is never crossed.
The candidate mixes up visually similar sign pairs: 'no entry' versus 'one-way road', 'no stopping' (yellow cross) versus 'no parking' (single yellow diagonal), and a zone sign (e.g. 30 km/h area) with a single-point restriction that ends at the next junction.
The signs are learned from a list without contrasts, so the yellow cross and the single diagonal blur together, and the red circle with a white bar is remembered as 'one-way' because one-way signs also involve white arrows on blue.
What to do instead
Study signs in opposing pairs and always check shape and colour logic: prohibitions are red circles, blue circles give orders, blue rectangles inform. For zones, remember the zone sign stays valid until the matching 'end of zone' sign, unlike a point restriction.
The candidate answers only from the main sign and ignores the supplementary plate or the road marking: a no-left-turn that applies only to lorries, a parking ban that applies only 8-18 on weekdays, or a stop line and yield triangles that decide who must give way.
Attention goes to the biggest, brightest element of the picture. Supplementary plates are small and low-contrast, and markings on the road surface are mentally filed under 'road' rather than 'sign'.
What to do instead
Adopt a fixed scanning order for every sign question: main sign, then supplementary plates, then road markings, then the situation around it. Read the plate aloud in your head ('only in the direction of the arrow', 'Mon-Fri 8-18') before choosing an answer.
Entering a bend at the posted speed and then braking in the middle of the curve, or on a slippery surface making a single sharp steering or braking input and continuing to look straight ahead at the obstacle instead of at the intended path.
In a written test there is no physical sensation of speed, so candidates answer as if the car will always follow the steering. 'Brake in the curve' also feels safer than 'brake before the curve' when you are not actually driving.
What to do instead
Fix the sequence in memory: brake in a straight line before the curve, select the right gear, then hold a steady line through it with gentle inputs. On ice, all inputs (steering, throttle, brake) are one at a time and gentle, and your eyes go where you want the car to go.
Rolling downhill in neutral or with the clutch held down 'to save fuel', riding the clutch at a standstill on a slope, or keeping a low gear and high revs while cruising.
These habits are picked up from other drivers or from old fuel-saving folklore, and the candidate genuinely believes neutral coasting is economical and safe.
What to do instead
Learn the correct pattern: engine braking in gear on descents (fuel cut-off, brakes saved, control retained), clutch fully released while moving, and the highest comfortable gear at cruising speed. Neutral or clutch-down coasting is never the right answer.
Answering stopping-distance questions as if distance grew in direct proportion to speed (e.g. doubling speed doubles the distance), or quoting only the braking distance and forgetting reaction distance, or using summer-grip figures for a winter scenario.
Candidates memorise one number ('about X metres at 80 km/h') instead of the structure, so any change in speed or surface breaks the answer. Reaction distance is invisible in the question and easily dropped.
What to do instead
Memorise the structure rather than numbers: total stopping distance = reaction distance (roughly 1 second of travel) + braking distance, and braking distance grows with the square of speed. In winter, apply a substantial multiplier to the whole figure.
Turning right across a cycle path without checking the blind spot and mirror for a cyclist coming from behind, or passing a cyclist with almost no lateral clearance, or treating a pedestrian who is stepping onto a crossing as someone who must wait.
Vulnerable road users move faster than candidates intuitively expect, and mirrors are mentally treated as covering everything. The cycle path alongside the road is not 'seen' in a static picture.
What to do instead
Build two hard rules: before any turn, mirror plus over-the-shoulder check for cyclists and pedestrians; and a pedestrian who is on the crossing or clearly about to step onto it is given way to. When passing a cyclist, leave roughly 1.5 m in built-up areas and more at higher speeds.
Choosing the 'warm up the engine by idling for ten minutes' answer, ignoring cold-engine fuel consumption, or dismissing tyre pressure as irrelevant to fuel use and emissions.
Cold-weather habits and old advice are strong; candidates also see eco-driving as a separate topic rather than a consequence of how the car is driven and maintained.
What to do instead
Anchor on three facts: idle only long enough to clear the windscreen (drive gently to warm up), under-inflated tyres raise rolling resistance and fuel use, and steady speed with early gear changes and anticipation beats any 'trick'. Anticipation also cuts brake wear.
Not knowing the winter-tyre obligation period and tread minimums, and not knowing that a red oil-pressure warning light means stop the engine immediately rather than 'drive to the nearest garage'.
Vehicle technology is studied last or skipped, and warning lights are learned as colours only ('red means something bad') without a required action attached to each.
What to do instead
Learn the figures and the action together: winter tyres required in winter conditions during the set period with a 3 mm minimum tread (1.6 mm for summer tyres), and red = stop safely and investigate, amber = proceed with caution to a workshop. Pair each dashboard symbol with one required action.