Virginia State Inspection Practice Test

How long must emergency brakes remain fully applied after a trailer breakaway?

1. 10 minutes

2. 15 minutes

3. 20 minutes

4. 30 minutes

The correct answer is: 15 minutes

The correct answer indicates that emergency brakes must remain fully applied for a duration of 15 minutes after a trailer breakaway. This time frame is crucial because it ensures that the trailer stays securely in place, minimizing the risk of it rolling or causing an accident. When a trailer becomes detached from the towing vehicle, the emergency brake system automatically engages to stop the trailer from moving. The specified 15-minute duration allows for the proper assessment of the situation and provides time for the driver to either regain control or address any issues that may arise following the separation. This requirement is part of safety regulations established to protect both the driver of the towing vehicle and other road users. Properly functioning emergency brakes that remain applied during this period ensure that the trailer does not become a hazard on the roadway. Understanding this time frame is essential for compliance with Virginia state laws regarding trailer operation and safety.