Final answer:
The orange and red triangular sign on a vehicle means it is a slow-moving vehicle.
Step-by-step explanation:
The orange and red triangular sign on a vehicle indicates that it is a slow-moving vehicle.
This sign is used to warn other drivers that the vehicle may not be able to travel at the same speed as regular traffic.
It is important for drivers to be cautious when approaching and passing slow-moving vehicles to ensure safety on the road.