If one system in a dual air brake system fails, what happens?
a.All braking is lost immediately
b.The other system can still provide some braking power
c.The parking brake automatically engages
d.The vehicle cannot be driven at all
Explanation
If one air brake system in a dual system fails, the other system can still provide braking. However, the remaining system will not have full normal braking power, so you should get the vehicle off the road and repaired as soon as safely possible.