Texas CDL General Knowledge Practice Exam

Which of these is usually true about driving in tunnels?

1. There are no speed limits in tunnels

2. There are no challenges in tunnels

3. There may be strong tailwinds in tunnels

4. There may be crosswinds when exiting

The correct answer is: There may be crosswinds when exiting

Driving in tunnels presents unique conditions that differ from driving on open roads. Regarding the choice that indicates there may be crosswinds when exiting, this is correct due to the fact that as vehicles exit a tunnel, they can be exposed to sudden changes in wind conditions. The area right outside the tunnel may experience crosswinds caused by surrounding terrain, buildings, or other environmental factors that become more prominent once a vehicle leaves the sheltered environment of the tunnel. When vehicles are transitioning from the enclosed tunnel to the open road, they may not only encounter wind but also changes in visibility and traction due to road conditions. Understanding these dynamics is essential for safe driving, as the vehicle may need adjustment in handling and speed to compensate for these elements. These conditions emphasize the importance of remaining vigilant and prepared for unpredictable changes as vehicles exit tunnels.