How are you required to conduct yourself in the following road section?

- Drive in low gear, steep climb ahead.
- Drive in high gear, to prevent engine overheating.
- Slow down, drive in low gear and maintain the engine’s temperature.
- Correct answer: Slow down and keep to the right of the roadway, due to the limited field of vision.
Why this is the answer
The correct answer in the official bank: Slow down and keep to the right of the roadway, due to the limited field of vision.
The road climbs toward a crest, and beyond it you cannot see what is approaching from the opposite direction. So slow down and keep to the right, to be able to stop and to leave room for a vehicle that may suddenly appear. The main danger here is the limited field of vision, not the gear or the engine's temperature.