Unless otherwise posted, what is the maximum speed limit on a two-lane undivided highway and for vehicles towing trailers?

Unless otherwise posted, what is the maximum speed limit on a two-lane undivided highway and for vehicles towing trailers?

• A. 65 mph
• B. 45 mph
• C. 55 mph
• D. 35 mph

Answer: (C)

On two-lane undivided highways in California, the default maximum speed is fifty-five miles per hour, and this limit also applies to vehicles towing trailers unless a speed limit sign says otherwise. The road design—no median, limited passing opportunities—means a lower, safer speed is set by default. So the best answer is fifty-five mph. Higher numbers like sixty-five are for other types of roads with higher posted limits, while lower numbers like forty-five or thirty-five are used in urban areas, school zones, or other special conditions, not the general two-lane undivided highway.

On two-lane undivided highways in California, the default maximum speed is fifty-five miles per hour, and this limit also applies to vehicles towing trailers unless a speed limit sign says otherwise. The road design—no median, limited passing opportunities—means a lower, safer speed is set by default. So the best answer is fifty-five mph. Higher numbers like sixty-five are for other types of roads with higher posted limits, while lower numbers like forty-five or thirty-five are used in urban areas, school zones, or other special conditions, not the general two-lane undivided highway.