Moving off should be calm, controlled and based on what is happening around you. The important part is not speed; it is making sure you do not cause another road user to brake, swerve or change course.
You may need to move away several times during a practical test, including after normal stops, at an angle, on gradients or near parked vehicles.
Use these as practice priorities rather than a rigid scripted routine.
Prepare the car before you commit to moving.
Check mirrors and the relevant blind spot immediately before moving away.
Choose a gap that gives you enough time to join traffic without forcing others to react.
Move away progressively and establish a safe road position promptly.
These are practical weaknesses worth fixing before test day. The exact fault grade always depends on the circumstances and severity.
Relying on mirrors alone when a blind-spot check is needed.
Waiting too long after observations so the traffic situation changes.
Rolling backwards on a gradient or losing control of the clutch.
Pulling out into a gap that is too small and inconveniencing traffic.
Build adaptability instead of repeating one memorised road or reference point.