Practice question

What must be secured before unlocking a pintle hook?

  1. Before unlocking a pintle hook, secure the dolly and trailer against rolling.
  2. stand between units on a grade
  3. raise rear landing gear
  4. release all brakes

Answer: A — Before unlocking a pintle hook, secure the dolly and trailer against rolling.

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Ohio CDL Doubles and Triples Endorsement Test Practice Questions - Ohio CDL Doubles and Triples Endorsement Test Exam →