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Practice quizzes / USPS MVO Exam Practice Questions - USPS Exam 220 230 240 - Motor Vehicle Operator Tractor Trailer Operator (Driving Experience Assessment) Exam / Question 195202
Practice question

Glad-hands are color-coded — the BLUE glad-hand connects to the:

  1. Trailer parking brake line (emergency line)
  2. Service brake line (control line)
  3. Power line
  4. Anti-lock brake light

Answer: B — Service brake line (control line)

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

Practice more: USPS MVO Exam Practice Questions - USPS Exam 220 230 240 - Motor Vehicle Operator Tractor Trailer Operator (Driving Experience Assessment) Exam →
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