Final answer:
To stop a train, an employee must wave the hand, flag, light, or any other object in a back-and-forth motion perpendicular to the train's direction until it becomes stationary.
Step-by-step explanation:
The correct answer is option a. In order to stop a train, an employee must move the hand, flag, light, or any other object in a way that it becomes stationary until the train passes by. This is typically done by waving the object in a back-and-forth motion perpendicular to the direction of the train. This motion catches the attention of the train operator and signals them to stop the train.
The correct answer is option A: In order to stop a train, an employee must move the hand, flag, light, or any other object in a specific manner to signal the train to stop.
This is a part of railway safety protocols and train operation procedures. Train employees need to understand and follow these protocols to communicate effectively with the train engineer and ensure the safety of themselves, the train, and any nearby individuals.
For example, a train flagman might swing a red lantern or flag in a particular pattern to indicate a stop signal. It is critical for the safety of everyone involved that these signals are clear and universally understood.
As such, safety training for railway employees includes learning these essential hand signals and being able to execute them under various circumstances.