California DMV Permit Test (Class C)Rules of the Road and Right-of-WayHard
You are driving on a highway and approach an exit ramp that requires a speed reduction from 65 mph to 25 mph. When should you begin to slow down for this exit?
- AImmediately after entering the exit ramp.
- BWhile still on the main highway, before entering the exit ramp.
- CAs you are halfway down the exit ramp.
- DOnly after you have completed the turn at the end of the ramp.
Show answer & explanationAnswer & explanation
Correct answer: A. Immediately after entering the exit ramp.
You should begin to slow down immediately after entering the exit ramp, as the ramp itself is designed for a lower speed. Decelerating on the main highway can impede traffic flow, and waiting too long on the ramp can lead to loss of control.
Why the other options are wrong
- B. Slowing on the main highway can create a hazard for following traffic.
- C. Waiting until halfway may not provide enough distance to safely reduce speed.
- D. This is much too late and highly dangerous, risking a crash or running off the ramp.
Exit Ramp Deceleration
Begin decelerating immediately upon entering an exit ramp, using the ramp's length to reduce speed to the advisory limit.
- Do not slow down on the main highway.
- Allows for smooth transition and safe navigation of curves.
- Prevents traffic flow disruption on the highway.
Memory trick: Ramp is for slow, highway is for go.