45.31. Which of the following indicators is activated when the engine is started and informs the driver of the vehicle about improperly closed doors?
UAЯкий із наведених індикаторів вмикається при запуску двигуна та інформує водія транспортного засобу про неправильно зачинені двері?
This is an exam question from the Traffic Rules of Ukraine (PDR) concerning road safety and the basic requirements for the technical condition of a vehicle before starting a trip. The indicator lights on the dashboard turn on during engine start not “for decoration,” but as a self-check of systems and a quick warning about dangerous malfunctions or dangerously open body elements. Understanding these signals helps to avoid situations where driving begins in violation of safety requirements.
In essence, this question tests sections of the traffic rules related to the driver’s duties and the technical condition of the vehicle: clause 2.3 (a) about the need to check serviceability and completeness before departure, clause 21.4 prohibiting driving with open doors, as well as general technical condition requirements under clause 31.1. For the theoretical exam, it is important not only to recognize the symbol but also to understand its practical meaning: if the door indicator is lit, you must not drive, because the doors may open while driving.
The correct answer is option 3, as it corresponds to the typical “open/incorrectly closed doors” icon (often in the form of a car diagram with open doors, and often with green illumination). The other options 1, 2, and 4 indicate other systems or warnings and do not signal about the doors, so they do not address the purpose of this exam question: to quickly inform the driver about incorrectly closed doors immediately after starting the engine.
Clause 2.3 (subclause "a")
To ensure road safety, the driver is obliged: before departure, to check and ensure the technical serviceability and completeness of the vehicle.
Clause 21.4
The driver is prohibited from starting to move if the vehicle doors are open, as well as from opening them while driving.
Clause 31.1
The technical condition of vehicles and their equipment must comply with the requirements of standards related to road safety and environmental protection, as well as the rules of technical operation, instructions of manufacturing enterprises, and other regulatory and technical documentation.
That is, the correct answer is "3.", given that according to the Traffic Rules requirements, the driver must ensure the technical serviceability of the vehicle before starting to move and not begin driving with open/improperly closed doors, and indicator 3 specifically informs about improperly closed doors.
After turning the ignition key or pressing the Start button on the instrument panel, various warning lights briefly illuminate. This is done for system self-check and so that the driver immediately notices important warnings before starting to drive.
Among these indicators, there is a specific one that signals open or improperly closed doors (sometimes also the trunk lid or hood). Its purpose is simple: to show that some element is not securely closed, and therefore it is unsafe to drive off. While driving, such doors may open, which directly contradicts safety requirements, as the driver is obliged to ensure the technical soundness and safe condition of the vehicle before starting to drive.
Visually, this indicator usually appears as a schematic image of a car with “open” doors and often lights up green. This is the symbol that illuminates when the engine is started and remains active if at least one door is not properly closed.
Therefore, the correct answer is "3.", since it is this indicator that informs the driver about improperly closed (open) doors when the engine is started.