System PartsPregunta 24 de 60
What is the main advantage of air brakes over hydraulic brakes on large vehicles?
a.They never need any inspection
b.Air is free and the system keeps working even with a small leak by using stored air
c.They eliminate the need for a parking brake
d.They make the vehicle stop instantly
Explicación
Air brakes are a good way to stop large and heavy vehicles because air is readily available and the brakes use stored compressed air. A small leak will not immediately stop the brakes from working because the system keeps a supply of air. However, air brakes have more parts and take longer to react than hydraulic brakes.
Practica las 60 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- What is the trailer hand valve (trolley valve) used for?
- Why should the trailer hand valve NOT be used for parking?
- What is a one-way check valve used for in an air brake system?
- On many air brake vehicles, what is the purpose of the safety relief valve on the first air tank?
- Some air brake systems use an alcohol evaporator. What is its purpose?
- How are the service brakes applied in an air brake vehicle?
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con CDL Air Brakes Knowledge Test · Cómo revisamos