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What factors may obstruct the field of vision of a truck driver?

A proper way of positioning the steering column.
Flashing lights with the name of the driver placed on the windscreen.
Advertisements placed on the sides of the vehicle.

Which of the following activities may improve safety while driving a bus in fog?

Turning on the high-beam lights.
Keeping a larger distance from the preceding vehicle.
Turning on the rear anti-fog lights, regardless of the prevailing visibility.

Which of the following factors may affect a bus driver's ability to observe the road?

Tiredness, reducing the efficiency of sight.
Transporting passengers in passenger seats.
Ergonomics of the passenger's seat.

What factors may affect a proper observation of the road while driving a bus at night?

Inability to distinguish shapes in the dark and sensitivity to being blinded.
Use of glasses suitable for driving at night.
Proper visual acuity of the driver.

When can you use high-beam lights when driving from dusk till dawn?

Always, as long as this does not blind other drivers.
On unlit roads, as long as this does not blind other drivers.
In thick fog which limits visibility to less than 50 m.

While driving a bus, when do you have to turn off the rear anti-fog lights?

When visibility increases to 30 m.
When visibility increases to 40 m.
When visibility increases to 60 m.

While driving a bus, when do you have to switch from high-beam to low-beam lights?

When another vehicle is approaching from the opposite direction.
When it starts to rain.
When you enter a built-up area.

When must you switch from high-beam to low-beam lights?

Always when you see the vehicle in front of you.
Always when there is a possibility of blinding the driver of the vehicle in front of you.
Always when you see a single pedestrian on the road.

In which of the following cases are you required to give short horn blasts while driving a bus in the fog?

While overtaking in a built-up area.
While overtaking outside a built-up area.
While passing a stationary object in a built-up area.

Which of the following factors can cause incorrect assessment of the situation on the road by the bus driver?

Driving at low speed.
High intensity of the traffic.
Very bad weather conditions.

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