Hydroplaning is caused by a combination of which conditions?

• A. Braking action on wet pavement
• B. Standing water, speed, and tire conditions
• C. Standing water alone
• D. Wind and road gradient

Answer: (B)

Hydroplaning occurs when a layer of water builds between the tire and the road, causing the tire to lose contact with the surface and reducing traction. This needs three things to line up: there is standing water on the road, you’re traveling at a speed that makes the tire push water ahead faster than it can grip the road, and the tire’s ability to move water away is compromised by worn tread or improper inflation. When these factors combine, the tire rides on a film of water rather than the pavement, making steering, acceleration, and braking less effective. The other options don’t fit because braking action on wet pavement describes friction loss during braking rather than the water-induced lift, standing water alone isn’t enough without sufficient speed and tire condition, and wind or road gradient aren’t the primary causes of hydroplaning. To reduce risk, slow down on wet roads, avoid standing water when possible, and ensure tires have adequate tread depth and proper inflation.