Which coupler type is characterized by its squared corners?

The coupler type characterized by its squared corners is the Standard or F-type coupler. This design is prevalent in both freight and passenger cars as it allows for a reliable connection between rolling stock. The squared corners provide a certain structural integrity and strength, enhancing the overall durability of the coupler under varying load conditions.

The Standard coupler design facilitates easy and efficient coupling and uncoupling, which is essential for railroad operations. Its design also aids in ensuring that the connection remains secure during travel, minimizing the risk of uncoupling during operation. The squared nature distinguishes it from other types of couplers which may have rounded or varied shapes.

Knowledge of coupler types is crucial in railroad operations, as each type serves specific purposes and functions based on the design characteristics, which affect compatibility and interchangeability between different rail systems.