Free Signaller concentration and pattern-checking practice
Applicants describe this one as deciding, quickly and over and over, whether an image matches a given criterion, and as spotting irregularities in patterns. The individual judgement is easy. What is being measured is whether you can hold the standard steady for the whole run — whether the decision you make at question ninety is as careful as the one you made at question three. Speed matters, but a fast wrong answer scores worse than a considered right one, and the commonest failure is drifting rather than not knowing.
Read the full concentration guide →
Applying to be a crossing keeper? This exercise is also included in our crossing keeper assessment practice, which adds scenarios written for that job. If that is your application, unlock that bundle instead of this one.
Try a free sample
Which of these clusters of dots forms the letter E?
Tap an answer to move straight on. There is no going back.
Unlock all 5 Signaller assessment sections
One payment unlocks every section of the signaller online assessment — multi-tasking, concentration, job simulation, memory grid, questionnaire briefing — with full question banks and unlimited mock tests. Also includes level crossing scenarios from our other practice. One-time payment, no subscription.
These are original practice exercises written to reflect the assessment format described by recent Network Rail signaller applicants. Network Rail publishes the stages of its signaller recruitment but not the exercises in its online assessment, so treat the format as reported rather than official, and always follow the guidance sent with your own application. These are not the official exercises, and this site is not affiliated with or endorsed by Network Rail.