Vehicle Basics · driving theory questions

Practice "Vehicle Basics". 68 driving theory questions with AI explanations. Free, official source material, mobile and desktop.

Sample questions

  1. The telescopic oleo-pneumatic shock absorbers fitted to certain motor vehicles have as their main characteristic:

    • A uniform, vigorous and, at the same time, smooth damping action;
    • Operation by gas and, therefore, they only function in a vertical position;
    • An effective, but violent action.

  2. By acting on the adjustment nut of an injector, one regulates:

    • The injection pressure, by means of the spring tension;
    • The diesel inlet valve in the injector;
    • The opening of the injection orifice.

  3. Is it possible to detect whether a hydraulic shock absorber is damaged by simple direct observation?

    • No;
    • Yes, but only in the event of fracture of the shock absorber;
    • Yes, in certain cases.

  4. The brushes of the electric motor, of the starter motor type, are made of:

    • Nickel-plated steel;
    • Silicon steel;
    • Graphite alloy with a high percentage of copper.

  5. The dark violet-blue warning light that appears on the instrument panel of motor vehicles serves to indicate to the driver that:

    • The dipped headlights are in use;
    • The full beam headlights are in use;
    • The fog lights are in use;

  6. Premature failure of transmission joints, whether elastic or not, may be due to:

    • Abrupt engagement of the clutch, mainly when the vehicle is loaded;
    • Abrupt disengagement of the clutch, mainly when the vehicle is under load;
    • Poorly achieved differential effect.

  7. In a heavy motor vehicle, the bursting of a pipe in the pneumatic braking system and the consequent loss of pressure means that:

    • The vehicle freewheels and, as such, becomes uncontrolled;
    • The vehicle becomes uncontrolled, albeit with a buzzer in operation;
    • The spring brakes lock the wheels.

  8. It is highly advisable that heavy motor vehicles used in the transport and respective distribution of goods over short distances:

    • Have a high-access cab with a raised roof;
    • Be equipped with a two-berth cab, with high access and a medium-height roof;
    • Have a cab with a low access step.

  9. The pressure gauge on the instrument panel of a motor car serves to inform the driver of the:

    • Pressure of the oil present in the channels and pipes of the lubrication circuit;
    • Temperature of the cooling liquid;
    • Intensity of the electric current in the respective circuit.

  10. If, in order to cause the vehicle to brake, the driver has to actuate the brake pedal several times, it is concluded that:

    • The tension in the brake shoe springs is excessive;
    • There is air in the braking system;
    • The drum is warped and the tension in the brake shoe springs is excessive.

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