The most common mistakes made during driving tests in 2018
1. Junctions – Observation
2. Mirrors – Change direction
3. Control – Steering
4. Junctions – Turning Right
5. Moving off – Safely
6. Response to signs – Traffic Lights
7. Move off -Control
8. Positioning – Normal Driving
9. Response to signs – Road Markings
10. Reverse park – Control
Insufficient observation at junctions and not using mirrors effectively when changing direction accounted for 368,047 test failures. The faults being made in driving tests reflect the factors that cause accidents on Great Britain’s roads. In 2017, drivers failing to look properly contributed to 35,993 accidents. It was the most common contributory factor in accidents.
You can be assured that the faults above are trained out of you to the best of your ability within your time booked on-to a National Intensive driving course.
Source - https://www.express.co.uk/life-style/cars/1154520/driving-test-new-rules-practical-reason-failed