Which of the following is included in the Train Control Apparatus?

The cab signal unit is indeed a critical component of the Train Control Apparatus. Its primary function is to provide real-time information to the locomotive engineer about the status of the track ahead, including speed restrictions and potential signals. By displaying this crucial information in the cab, the engineer can make informed decisions about speed and operation, ensuring that the train operates safely and efficiently.

The cab signal unit works in conjunction with other safety systems, helping to prevent mishaps by alerting the engineer to changes in signal conditions. This functionality makes it a vital element of modern train control systems, which are designed to enhance safety and operational efficiency in rail transport. The integration of cab signals into the broader control apparatus aligns with established safety practices in the industry.

While automatic braking systems, speed monitoring devices, and engine power regulators are all important for the overall operation and safety of a train, the cab signal unit specifically pertains to the Train Control Apparatus by providing direct signals that influence train operation and ensure adherence to safe speed limits.