Use of Horns and Lights - Driver theory Test

Lights used to Drive in heavy fog

High beams reflect off fog particles, reducing visibility. Low beams and fog lights improve road vision.

Overtaking on unlit rural roads

Flashing lights signals intent to overtake as per Brazilian rules.

Using hazard lights

Hazard lights must not be used while driving normally- only when stopped or in emergencies.

Lights used in Daytime highway driving

Low beams help increase vehicle visibility on highways during daylight.

Lights used while approaching a vehicle at night

Avoid dazzling other drivers, use low beams when near or behind another vehicle.

Driving in mist or light fog

High beams reflect off mist and worsen visibility- use low or fog lights instead.

Using horn in cities

Honking in urban areas is permitted only to prevent a collision, not for casual use.

Glare from sunlight

Take precautions to handle glare and maintain safe driving.

Indicating braking

Brake lights signal to drivers behind that the vehicle is slowing down or stopping.

Honking outside urban areas

A short horn blast warns the vehicle ahead of an overtaking maneuver.

Driving through tunnels during the day

Low beams must be used when public lighting is absent in tunnels.

Heavy rain while stationary

These lights signal the presence of a stopped vehicle without dazzling others.

Dazzled by oncoming headlights

Looking away from bright lights helps maintain control and avoid blindness.

Driving through a dust cloud

Fog lights are designed to cut through low-visibility conditions like dust or fog.

Rearview mirror glare at night

Adjusting helps avoid being blinded by headlights from vehicles behind.

Uso de buzinas e luzes