31.14. In the event of which malfunction is further movement prohibited?
UAУ разі виникнення якої несправності заборонено подальший рух?
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This exam question from the Traffic Rules of Ukraine tests the understanding of which technical malfunctions create a critical safety threat and require immediate cessation of movement. In the theoretical exam, it is important to distinguish minor comfort or noise issues from defects that make the vehicle uncontrollable or dangerous for other road users.
The question belongs to Section 31 of the Traffic Rules, which regulates the technical condition of vehicles and their equipment. The key provision is contained in point 31.6 (educational materials also often refer to point 31.4.6), which states directly: further movement is prohibited if the steering does not allow a maneuver to be performed even at minimum speed. The logic is simple: if the driver cannot reliably change trajectory, stay in the lane, or safely move to stop, the risk of an accident arises immediately, so "slowly driving to the service station" under one's own power is not allowed.
Comparing the options in the ticket shows the difference between critical and non-critical malfunctions. A non-working window regulator does not directly affect controllability or the ability to stop the car, so by itself it is not grounds for prohibiting further movement. A faulty muffler is an undesirable malfunction (it may violate noise level and exhaust system requirements), but in the context of this exam question it is not equated to situations where the traffic rules directly prohibit continuing to drive due to loss of controllability; instead, the critical issue is precisely a steering malfunction that does not allow maneuvers even at minimum speed.
Clause 31.6
Further movement of vehicles is prohibited if: a) the service braking system or steering does not allow the driver to stop the vehicle or perform a maneuver while driving at minimum speed; b) at night or in conditions of insufficient visibility, the headlight lamps or rear position lamps are not lit; c) during rain or snowfall, the windshield wiper on the steering side does not work; d) the coupling device of a road train is damaged.
Explanation of application: within this clause of the Traffic Rules, a list of critical malfunctions is directly defined, in the presence of which the driver is prohibited from continuing to drive. For this question, the key is subclause "a", which directly mentions the steering, which does not provide the ability to perform a maneuver even at minimum speed.
Thus, the correct answer is "Faulty steering does not allow performing a maneuver while driving at minimum speed," given that by the definition of the Traffic Rules, further movement is directly prohibited if the steering does not allow performing a maneuver while driving at minimum speed (clause 31.6, subclause "a").
While driving, the driver is responsible not only for obeying signs and markings, but also for the technical condition of the vehicle. In the Traffic Rules, this is directly related to safety requirements: if a certain malfunction makes driving dangerous, the driver has no right to continue driving.
Section 31 of the Traffic Rules of Ukraine defines the list of technical malfunctions for which further movement is prohibited. In clause 31.4.6 (in the content of the requirements of section 31 regarding the prohibition of further movement), a critical principle is emphasized: if the steering or braking system does not provide basic controllability and the ability to act safely on the road, driving must be stopped.
Why specifically the steering? Because the steering wheel is responsible for the trajectory of the vehicle. If the malfunction is such that even at minimal speed you cannot perform a basic maneuver (for example, smoothly avoid an obstacle, turn within the lane, or move to the right for a stop), then the vehicle becomes practically uncontrollable. In this situation, danger arises instantly: any pothole, road turn, sudden braking ahead, or lane narrowing will require a maneuver, and you physically will not be able to perform it.
For example, imagine that while driving, the steering wheel has excessive play or jams, and the vehicle does not respond to steering as it should. Even if you are driving very slowly, you cannot reliably keep direction or move to the roadside without the risk of entering the oncoming lane or hitting other road users. That is why the Traffic Rules do not allow you to "slowly drive to the service station" under your own power in such a condition—the vehicle must be removed from the road in a safe way, including by evacuation or towing according to the conditions.
Therefore, the correct answer is "Faulty steering does not allow you to perform a maneuver while driving at minimal speed," because such a malfunction deprives the driver of the ability to safely control the direction of movement, and the Traffic Rules prohibit further movement when maneuvering is impossible even at minimal speed.