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Hydroplaning can start at speeds as low as

A 30 mph.

Hydroplaning occurs when a thin sheet of water gets between the road surface and a vehicle's tires, causing them to lose contact with the road. The vehicle then begins a skidding movement across the road. Hydroplaning can start at speeds as low as 30 mph and in water that is little more than 1/8 inch deep.

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5 years ago

Great app

Myles Blake High School

5 years ago

I only got 2 questions wrong

Tim de Bear

5 years ago

In the midst of finishing up learning on the older app, it told me to download this newer version. However, I didn’t want to have to go through all those questions again, so I simply finished reviewing on the old app and took the practice test on this newer app. Upon completion of the tests, it would not let me move forward or see my score! How should I know if I have done well enough to pass if I cannot see my own score?

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