Czech Theory Test T common mistakes
Czech Theory Test T · Understand the traps and how to avoid them.
At uncontrolled intersections the candidate yields to a vehicle approaching from the right on a road that is actually a main road, or fails to yield when the other vehicle is genuinely coming from the right, because they judge priority by vehicle size or by who arrived first instead of by the right-hand rule and posted priority signs.
Learners memorise 'yield to the right' as a slogan but never practise identifying which road is marked as main, so at T-junctions and unmarked crossroads they default to guessing or to courtesy behaviour learned from experienced drivers.
What to do instead
Before each junction, say out loud the sign sequence seen in the last 50 m and state the resulting rule: main road, right-hand rule, or sign-controlled. Drill ten photo-free scenarios in writing where you list every approach and its sign, then derive who goes first before checking the answer.
The candidate stops or slows at a pedestrian crossing only when a pedestrian is already on the stripes, and does not anticipate a person waiting on the kerb or stepping out from behind a parked vehicle.
Crossing questions are answered from memory of the rule 'yield to pedestrians on the crossing', which omits the duty to approach at a speed allowing a stop and to watch both directions and the far kerb.
What to do instead
Adopt a fixed scanning routine for every crossing: mirror, speed check, scan left kerb, right kerb, far side, then proceed. In practice questions, treat any pedestrian within about two car lengths of the kerb as about to cross and answer accordingly.
The candidate misreads roundabout signage and lane markings, signalling left on entry for a straight-ahead exit or staying in the outer lane for a later exit, and cannot state when the left indicator must be cancelled.
Roundabout lane discipline is taught as a set of separate rules for first, second and later exits rather than as one principle based on exit position, so candidates mix up the indicator timing under exam pressure.
What to do instead
Learn one principle: signal right before the exit you intend to take, keep left-hand lane discipline for early exits, and cancel the indicator as the steering wheel returns. Write out the indicator sequence for each exit number on a three- and four-exit roundabout until it is automatic.
The candidate answers braking-distance and reaction-distance questions using a single memorised total figure and cannot separate perception, reaction and braking components, or adjust for wet, icy or loaded conditions.
Stopping distance is revised as one number to recall rather than as a relationship between speed, reaction time and friction, so any variation in the question wording breaks the answer.
What to do instead
Rebuild the model: reaction distance equals speed in metres per second times reaction time, braking distance grows with the square of speed, and wet or icy surfaces multiply the braking part only. Recalculate a few examples by hand at 50 and 90 km/h, dry and wet, so the numbers become derived rather than memorised.
The candidate confuses the tread depth limits and tyre-condition rules that apply to cars, light trailers and tractors, and cannot say which tyres the minimum applies to.
The legal minima differ by vehicle category and by tyre type, and candidates study one figure without noting the category it belongs to, so tractor and trailer questions expose the gap.
What to do instead
Build a small table with one row per vehicle category and columns for minimum tread depth, winter-tyre rules and prohibited damage, filling it from the official rules rather than from memory. Recite the table before each practice set until the category boundaries are clear.
The candidate cannot describe what a periodic technical inspection checks or what an operator must do when a defect is found, and treats the inspection sticker as proof that the vehicle needs no further maintenance.
Technical inspection is studied as an administrative date to remember rather than as a safety check with defined scope and consequences, so defect and roadworthiness questions are answered by guesswork.
What to do instead
Learn the inspection as a list of systems checked: brakes, steering, suspension, lights, emissions, body condition and identification marks. Then learn the two outcomes, pass with a validity period or fail with a defined repair and re-inspection path, and the driver's duty to keep the vehicle roadworthy between inspections.
When coupling a trailer the candidate lowers the drawbar onto the ball without checking that the coupling is fully engaged and locked, then drives off without a pull test, without connecting the breakaway cable and without checking the lights.
Coupling is learned as a sequence of physical actions without a verification step at each stage, so the candidate performs the motions but skips the checks that prove each one worked.
What to do instead
Use a fixed coupling checklist in order: align and lower, confirm the lock indicator and fit the safety pin, attach the breakaway cable to a fixed point, connect electrics and test every light with a second person or a reflection, raise the jockey wheel, then do a low-speed pull test against the handbrake before moving off. Say each step aloud while practising.
The candidate calculates payload from the trailer's own maximum mass and ignores the vertical load on the coupling and the towing vehicle's limits, and cannot explain how an overloaded or badly distributed load changes handling.
Load security is revised as 'do not exceed the maximum mass' without linking it to the three separate limits that apply, namely the trailer's maximum technical mass, the towing vehicle's towing capacity and the coupling's vertical load limit.
What to do instead
Learn the three limits as a triple check and practise a worked example: trailer mass, plus load, plus vertical load compared against each limit. Then state the handling consequences of exceeding the vertical load, of a rear-biased load causing snaking, and of an unsecured load shifting under braking.
The candidate cannot state which documents must be carried when driving, who is responsible for the tachograph or record-keeping duties where they apply, and what to do after an accident involving injury or a foreign vehicle.
Administrative rules are treated as background reading, so the candidate remembers that documents exist but not which ones must be physically in the vehicle, who must be notified, and within what time.
What to do instead
Write a one-page card listing the documents to carry, the notification duties after a collision with injury or property damage, and the reporting steps. Test yourself by describing a scenario and naming each document and each notification in order.
The candidate starts first aid by moving an injured motorcyclist or suspected spinal case, or by giving food and drink, instead of securing the scene, calling emergency services and controlling severe bleeding.
First aid is studied as a list of injuries with treatments rather than as a priority order, so under exam pressure the candidate picks the treatment that sounds most helpful rather than the step that comes first.
What to do instead
Memorise the priority chain: protect the scene and yourself, alert emergency services with a precise location, then address life threats in order of catastrophic bleeding, airway and breathing, then shock and warmth. Learn explicitly that a casualty with suspected spinal injury is not moved unless there is immediate danger such as fire.
The candidate answers economical-driving questions by recommending the highest gear at all times and ignores anticipation, correct tyre pressure, unnecessary load and idling, so answers on fuel-saving technique are one-dimensional.
Eco-driving is reduced to a single slogan about gear changes, and the candidate never links fuel consumption to anticipation, rolling resistance and vehicle mass.
What to do instead
Learn eco-driving as four levers: anticipate to avoid braking, use the highest appropriate gear at low engine speed without labouring the engine, keep tyres correctly inflated and remove unnecessary mass and roof load, and switch off the engine during longer stops. Practise explaining how each lever changes consumption.