What does the term 'jackknife' refer to when it comes to trailer towing?

The term 'jackknife' in the context of trailer towing specifically refers to a scenario where the trailer skids sideways, creating an angle that is perpendicular to the towing vehicle. This situation often arises when the trailer's wheels lose traction, typically during sudden braking or sharp turns and can be very dangerous as it may lead to loss of control of both the trailer and the towing vehicle.

In this position, the trailer forms an angle that resembles a jackknife, hence the name. Maintaining control while towing is crucial, and understanding how to prevent a jackknife situation is important for safe towing practices.

The other options highlight scenarios that may occur while towing but do not accurately define a 'jackknife.' Veering off-road, becoming unhitched, or losing wheel traction may contribute to hazardous situations but do not describe the specific jackknife maneuver itself.