Practice question

What is the 'Fifth Wheel' (Sattelkupplung) on a heavy semi-trailer tractor (Sattelschlepper)?

  1. A spare tire mounted under the driver seat
  2. A decorative steering wheel in the sleeper bunk
  3. A horseshoe-shaped coupling plate mounted on the tractor chassis that locks onto the semi-trailer's Kingpin (Königsbolzen) to articulate and tow the semitrailer
  4. A fifth wheel mounted on the front bumper for parallel parking

Answer: C — A horseshoe-shaped coupling plate mounted on the tractor chassis that locks onto the semi-trailer's Kingpin (Königsbolzen) to articulate and tow the semitrailer

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Practice more: Swiss Category C Theory (Truck) Practice Questions - Switzerland Driving Theory Test - Category C (Heavy Motor Vehicles) Exam →