Practice question

For the Kentucky CDL Combination Vehicles test, which statement is correct about fifth wheel grease?

  1. Skip the visual coupling inspection after a successful tug test.
  2. Lack of fifth wheel grease can cause steering problems from friction.
  3. Back under the trailer at an angle to save space.
  4. Leave landing gear partly raised so it can clear the trailer nose.

Answer: B — Lack of fifth wheel grease can cause steering problems from friction.

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