What does pressing the dead man's switch during a tram stop result in?
Show the correct answer
Correct answer
B. It enables start-up of the tram.
Explanation
This question is about the dead man's device, that is the device that checks the tram driver's alertness. Pressing it while the tram is stationary enables the tram to start up - the answer is B.
The tram driver keeps the dead man's device pressed the whole time while driving. Without the dead man's device pressed, the tram will not move off, and releasing it while driving triggers emergency braking - this is a safeguard in case the tram driver faints. The dead man's device does not lower the track brakes (answer A) - on the contrary, releasing it while driving makes them come on. The dead man's device has no connection with the tram's lighting (answer C). Never block or bypass the dead man's device, because you take away an important safeguard from yourself and your passengers.
Legal basis: Art. 3 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)