When driving a truck and encountering the warning sign for a steep downhill slope, what guideline must the driver follow regarding gear selection?

Question

DentroTest · Accepted Answer

Sign P-16a (“Steep descent”) warns of the approach of a stretch with a steep downhill slope, and shows the gradient as a percentage inside it. In a heavy vehicle such as a truck, tackling a steep descent requires selecting in advance a gear low enough to take advantage of engine braking and not overload the service brakes. That is why the gear that allows descending safely must be selected. Choosing a gear for climbing makes no sense, because the sign warns of a descent, and the gear is not irrelevant either, because control of the vehicle on the descent depends on it.

When driving a truck and encountering the warning sign for a steep downhill slope, what guideline must the driver follow regarding gear selection?

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