Asked by Kamia Bryan on Jun 01, 2024
Verified
What is the FMVSS-121 minimum required stopping distance for a tractor-trailer semi rig built after 2010?
A) 125 feet
B) 250 feet
C) 350 feet
D) 500 feet
FMVSS-121
Refers to the Federal Motor Vehicle Safety Standards regarding air brake systems, specifying design, performance, and maintenance criteria for safe operation.
Stopping Distance
The total distance a vehicle travels from the moment the brakes are applied until it comes to a complete stop, depending on speed, vehicle condition, and road conditions.
Tractor-Trailer
A vehicle comprising a towing engine (tractor) and a trailer, used primarily for transporting goods over long distances.
- Know the FMVSS-121 stopping distance requirements for tractor-trailer rigs built after 2010.
Verified Answer
AT
Alaina ThweniJun 03, 2024
Final Answer :
B
Explanation :
The FMVSS-121 regulation stipulates that a tractor-trailer semi rig built after 2010 must have a minimum required stopping distance of 250 feet when traveling at 60 mph. This standard was implemented to ensure greater safety on the roads by reducing the stopping distance of heavy commercial vehicles.
Learning Objectives
- Know the FMVSS-121 stopping distance requirements for tractor-trailer rigs built after 2010.