19 . Hydroplaning occurs when tires ride on a thin film of water instead of on the surface of the road. To prevent hydroplaning in rainy weather, you should:
Put on your cruise control to maintain a constant speed.
Decrease your speed.
Move to the shoulder of the road as soon as it starts to rain.
23 . A steady yellow traffic signal light is a warning that the light is about to change to red. If you are already within the intersection when a green light changes to yellow, you should:
Stop.
Continue moving and clear the intersection safely.
Increase your speed so as not to cause an accident.