45.13. While driving a car, warning indicator No. 1 lights up. This means:
UAПід час руху на автомобілі загорівся попереджувальний індикатор № 1, це означає:
This is an exam question from the Traffic Rules of Ukraine about road safety through monitoring the technical condition of the vehicle while driving. It reminds that the driver must pay attention to the dashboard signals, as warning indicators are directly related to the risk of sudden breakdowns and danger on the road. Such situations are often included in the theoretical exam because they test not only the knowledge of symbols, but also the understanding of consequences and the correct actions of the driver.
The question checks the sections of the traffic rules regarding the driver's duties and the technical condition of the vehicle: in particular, the requirements to check the vehicle's condition before departure and while driving (item 2.3), compliance of the technical condition with the requirements and manufacturer’s documentation (item 31.1), as well as actions in case of malfunctions (items 31.4.7 and 31.5). The indicator in the form of an "oil can" means a problem in the engine lubrication system: a critical drop in oil pressure or a dangerously low oil level. This is one of the most dangerous situations, because without proper lubrication the engine can suffer serious damage within minutes.
The analysis of the answer options helps not to confuse the indicators: a battery malfunction is usually indicated by a battery symbol, not an oil can; brake system problems are more often shown by a circle with an "!" or "P" and are related to brake fluid/parking brake; high coolant temperature is indicated by a thermometer above waves. In contrast, the "red oil can" specifically points to an emergency situation with oil (pressure/level), so the correct interpretation in this exam question is key for the safe operation of the car according to the traffic rules.
Clause 2.3 (subclause "a")
To ensure road safety, the driver is obliged to: a) before driving, check and ensure the technical serviceability and completeness of the vehicle, as well as the correct placement and securing of the load.
This clause is related to the fact that warning indicators on the instrument panel (in particular, the lubrication system indicator) are a means of monitoring the technical condition of the vehicle, which the driver must ensure and check.
Clause 31.1
The technical condition of vehicles and their equipment must comply with the requirements of standards relating to road safety, occupational safety, and environmental protection, as well as the rules of technical operation, manufacturer instructions, and other regulatory and technical documentation.
This clause links the "decoding" of control/warning indicators (including the "oil can" indicator) to the manufacturer's requirements and technical documentation: the indicator signals a dangerous deviation in the operation of the lubrication system (oil pressure/level).
Clause 31.4.7 (section "Engine")
The operation of vehicles is prohibited according to the law in the presence of the following technical malfunctions and non-compliance with standards: 31.4.7. Engine — in particular, violation of the tightness of systems, including the lubrication system (oil leakage).
This clause covers a typical reason for the indicator to light up — oil loss (which may result in a low level and/or drop in pressure in the lubrication system).
Clause 31.5
If any of the malfunctions specified in clause 31.4 of these Rules occur on the road, the driver must take measures to eliminate them, and if this is not possible — drive by the shortest route to a parking or repair location, observing safety measures.
Application: when the lubrication system indicator lights up while driving, this is a sign of a technical malfunction (in particular, related to oil), and the driver is obliged to act in accordance with the requirements for malfunctions on the road.
That is, the correct answer is "Drop in pressure in the lubrication system or low oil level," given that according to the definition of the Traffic Rules, the driver is obliged to ensure the technical serviceability of the vehicle (cl. 2.3), the technical condition must comply with the requirements and instructions of the manufacturer (cl. 31.1), and malfunctions related to the lubrication/oil system are considered prohibited/dangerous and require taking measures on the road (subcl. 31.4.7, 31.5).
Warning indicator No. 1 in the form of an “oil can” on the dashboard relates to the engine lubrication system. When the ignition is turned on, it may light up briefly as a check, but after the engine starts, it should go out. If the indicator does not go out or lights up while driving, this is already a sign of a malfunction.
The meaning of this signal is simple: there is insufficient oil pressure in the engine or the oil level has become critically low. Under normal operation, the oil pump creates pressure so that oil reaches the friction components and protects the engine from overheating and accelerated wear. When the pressure drops or there is a lack of oil, lubrication essentially disappears, and the engine can suffer serious damage in a very short time.
From the perspective of safety requirements and the Traffic Rules, operation of the vehicle is permitted only when it is in technically sound condition, and the driver is obliged to monitor the instrument readings and take action when signs of malfunction appear. Therefore, the appearance of the “red oil can” while driving means that the car has a technical problem that directly affects the engine's operability and requires immediate action (stopping in a safe place and checking the oil level/eliminating the cause).
Thus, the correct answer is “Drop in lubrication system pressure or low oil level,” because the “oil can” indicator specifically warns about a dangerous lack of pressure or oil in the engine lubrication system.