1 - Invisible ice is:

1. a thin layer of transparent ice that forms on the roadway
2. a layer of hardened snow formed by residues of de-icing materials
3. a very thick layer of ice that forms in cold weather
4. accumulated granular material mixed with melting snow

2 - If your vehicle has ABS brakes, it is recommended that, in an emergency, you:

1. brake gradually to avoid locking the wheels
2. hold the brake down as far as possible
3. pump the brakes forcefully
4. repeatedly brake lightly and release

3 - To ensure the best road maintenance possible, the speed of road maintenance vehicles in winter must not exceed :

1. 80 km/h;
2. 30 km/h;
3. 90 km/h;
4. 50 km/h.

4 - Salt used to de-ice roads acts:

1. in one to two hours
2. in 20 to 30 minutes
3. instantly
4. in 45 to 60 minutes

5 - In winter, most traffic accidents occur during storms.

6 - Snow tires are made out of rubber which is harder and thus better suited to cold weather.

7 - The salt used on highways is effective even in extreme temperatures.

8 - The use of anti-lock brakes in winter reduces braking distance.