The road surface becomes very slippery when rain first starts to fall because:
|
Water tends to pool more at that time.
|
|
|
It rains harder during that time.
|
|
|
Your tires absorb more water at first.
|
|
|
Rain mixes with oils, dust and road film that cover the road's surface.
|
Explanation
When rain starts to fall, the road surface can become very slippery due to a combination of factors. Oils, dust, and road film that have accumulated on the road's surface mix with the rainwater, creating a slippery layer. This is especially pronounced during the first half hour of rainfall because the water doesn't immediately wash away the dust and road film. The mixture of oil, dirt, rubber dust, and water creates a slick surface that reduces tire traction and makes it harder to maintain control of the vehicle.
Answer Statistics
🟡 This question is moderately difficult — 25.1% of our users answer it incorrectly.
Other questions in the same category: Safe Driving on Slippery Roads
Hydroplaning is usually caused by:When your wheels slip off the road edge, you should:When driving on roads that may be slippery:When driving on wet roads, you should:If there is a deep puddle in the road ahead, drivers should:Hydroplaning is when:When a vehicle is hydroplaning:Hydroplaning happens when:Roads are the most slippery:If your vehicle starts to hydroplane you should:
This question appears in the following DMV practice tests:
North Dakota DMV Practice Test 2California DMV Practice Test 5Arkansas DMV Practice Test 5Michigan DMV Practice Test 8North Carolina DMV Practice Test 10New Jersey DMV Practice Test 10New Mexico DMV Practice Test 11Virginia DMV Practice Test 11West Virginia DMV Practice Test 11Indiana BMV Practice Test 13