Which device must be held in the operating position and will bring the LRV to a stop if released?

Which device must be held in the operating position and will bring the LRV to a stop if released?

• A. Deadman
• B. Crossing Gates
• C. Cab
• D. Catenary

Answer: (A)

The main idea is a safety device that requires continuous input from the operator to keep the train moving. A deadman switch is designed so the LRV only stays in motion while you’re actively applying pressure or keeping it in the operating position. If you release it, the system recognizes the loss of control and applies the brakes to stop the train, bringing the LRV to a halt. Crossing gates are protective barriers at street crossings that may require a train to stop at a crossing, but they don’t control the train’s braking simply because they’re released. The cab is the operator’s compartment, not a mechanism that stops the train by itself. The catenary is the overhead power line that feeds electricity to the train and has no automatic stop function when a control is released.

The main idea is a safety device that requires continuous input from the operator to keep the train moving. A deadman switch is designed so the LRV only stays in motion while you’re actively applying pressure or keeping it in the operating position. If you release it, the system recognizes the loss of control and applies the brakes to stop the train, bringing the LRV to a halt.

Crossing gates are protective barriers at street crossings that may require a train to stop at a crossing, but they don’t control the train’s braking simply because they’re released. The cab is the operator’s compartment, not a mechanism that stops the train by itself. The catenary is the overhead power line that feeds electricity to the train and has no automatic stop function when a control is released.