Practice question

Why is it unsafe to make a full service brake application while spring brakes are also applied?

It can compound brake pressure through the same linkage and stress brake components
It lowers brake force to zero in every case
It disables all reservoir gauges permanently
It turns an air brake vehicle into an air-boost hydraulic vehicle

Answer: A — It can compound brake pressure through the same linkage and stress brake components

The correct answer is shown above. Try the full quiz for additional practice.