What risks are expected whilst driving on a mountain road?

1. Engine heating due to excessive use of the brakes.
2. Correct answer: Loss of braking ability and head-on collision. Difficulty yo pull off the road.
3. Tire overheating.
4. Loosening of a wheel due to the road's steep slope.

WhyOn a mountain road you can lose your brakes, collide head-on or go off the road. It is the brakes that overheat, not the engine.