Iowa CDL Class B Knowledge Test 2

When performing a pre-trip inspection and looking into the fifth wheel gap, you should:

Make sure the locking jaws are open. Make sure the locking jaws are fully closed around the kingpin. Make sure the locking jaws are loose.

Make sure the locking jaws are fully closed around the kingpin.

Access more questions from this quiz

Continue to Iowa CDL Class B Knowledge Test 2 for more practice questions and the full quiz experience.