← Lessons 20-Mechanical Conditions - Plating and Testing Quiz 0 / 8 read 1. INTRODUCTION 2. VEHICLES SUBJECT TO TEST 3. MANUFACTURERS' PLATES 4. TYPE APPROVAL 5. DfT PLATING PROCEDURE 6. ANNUAL EXAMINATION 7. Quick Exam Numbers / Facts – Memorise These 8. Final Memory Checklist 2. VEHICLES SUBJECT TO TEST Rigid vehicles exceeding 3,500 kg GVW. All articulated vehicles, including tractive units and semi-trailers. Trailers, other than semi-trailers, over 1,020 kg ULW. Converter dollies, which convert semi-trailers into drawbar trailers, are also included. Examples of exemptions include work trucks, road rollers and motor tractors.