Scan QR code or get instant email to install app
Question:
To help release the fifth wheel locking lever _________.
A
Back up gently to ease the pressure on the locking jaws.
explanation
STEP 2: Ease Pressure on Locking Jaws
Shut off trailer air supply to lock trailer brakes.
Ease pressure on fifth wheel locking jaws by backing up gently. (This will help you release the fifth wheel locking
lever.)
Put on parking brakes while tractor is pushing against the kingpin. (This will hold rig with pressure off the locking
jaws.)
Take more free practice tests for other DMV topics with our CDL practice test now!
Related Information
Comments
EdgarCeja26
5 years ago
Great app
Myles Blake High School
5 years ago
I only got 2 questions wrong
Tim de Bear
5 years ago
In the midst of finishing up learning on the older app, it told me to download this newer version. However, I didn’t want to have to go through all those questions again, so I simply finished reviewing on the old app and took the practice test on this newer app. Upon completion of the tests, it would not let me move forward or see my score! How should I know if I have done well enough to pass if I cannot see my own score?