CDL Air Brakes Practice Test - Oregon
16.
If a load is 10 feet long, the minimum number of tie-downs required is:
|
4
|
|
|
3
|
|
|
2
|
|
|
1
|
17.
When the spring brakes are on, you should push the brake pedal down:
|
Only when approaching railroad-highway crossings.
|
|
|
Only when driving downhill.
|
|
|
Never.
|
|
|
Only when driving uphill.
|
18.
When backing a trailer, you should:
|
try to position your vehicle so you can back in a straight line.
|
|
|
turn the steering wheel in the direction you want to go.
|
|
|
avoid correcting the drift.
|
|
|
never make pull-ups to reposition your vehicle.
|
19.
Stepping on and off the brake pedal several times:
|
may result in dangerously thin linings.
|
|
|
reduces the air pressure in the tanks.
|
|
|
may cause air leaks.
|
|
|
All of the above.
|
20.
The safety valve is usually set to open at:
|
100 psi
|
|
|
150 psi
|
|
|
125 psi
|
|
|
200 psi
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More