Practice question

What is the proper method for coupling tractor and trailer air lines (gladhand connectors)?

  1. Clean rubber seals, align gladhands at a 90-degree angle, press together firmly, rotate downward until locking tabs engage, and check for air leaks after pressurizing
  2. Smear thick grease onto the rubber seals and hammer them together with a wrench
  3. Cross the red and blue lines intentionally to test the system
  4. Tape the gladhands together with electrical tape

Answer: A — Clean rubber seals, align gladhands at a 90-degree angle, press together firmly, rotate downward until locking tabs engage, and check for air leaks after pressurizing

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