When the car is going down a long ramp, can the automatic car drive in N gear?

According to your question, I can definitely answer: Yes. Because the automatic transmission has N gear, it is a gear that can be used attentively. When an automatic transmission vehicle goes down a long slope, for safety reasons, it is best to stay in the D gear, or even put up the 1, 2, and 3 gears in advance according to the needs of the slope, and use the traction of the engine to limit the speed.