|
10 psi
|
|
|
25 psi
|
|
|
50 psi
|
|
|
100 psi
|
45/50.
20.
Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.
Answer correctly : 0 | Wrong : 0
Answer Sheet :
Refresh
Refresh this page and redo the question
Restart
Restart this set of tests