Final answer:
The coupler found on a R44 and R46 is a mechanical device used to connect two train cars together. It is a vital component of the train's coupling system, allowing for the transfer of forces and power between the cars.
Step-by-step explanation:
The coupler found on a R44 and R46 is a mechanical device used to connect two train cars together.
It is a vital component of the train's coupling system, allowing for the transfer of forces and power between the cars. The coupler ensures that the cars can be securely attached and provides a means for communication and control between them.