What is the SERU pass mark?

Candidates need to demonstrate competence across all subject areas — the SERU is a competency assessment rather than a simple percentage, and you must pass each module.

How long does the real SERU take?

UK Test Hub SERU mocks use a 30-minute practice timer. Official TfL SERU timing and test-centre arrangements can change, so always check TfL’s current guidance before booking or attending the real assessment.

What do I do if I fail SERU?

You can re-sit, but TfL charges a re-test fee each attempt and may impose a waiting period. Use these mocks until you're consistently scoring well before rebooking.

Is SERU the same as Topographical?

No — Topographical tests map reading and London geography. SERU tests safety, equality and regulation knowledge. Most applicants must pass both.

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SERU TfL Mock Test 23

Mock test 23 — 24 questions.

24 questions30 minPass: 75%

About this mock

Difficulty: Intermediate

SERU Mock 23 gives focused revision on tfL rules using licensed journey decisions. When tfL rules appears in the question, fare and route expectations, passenger respect and tfL rules during fare and route expectations review give the main evidence for the answer. A lower score points to tfL rules in practice before another mixed mock. On SERU Mock 23, feedback should lead back to tfL rules.

Topics included

Driver conduct
Passenger safety
Safeguarding
Equality duties
Accessibility
PHV booking rules
TfL licensing standards

Common mistakes in this mock

Misreading the question about TfL rules
Choosing an answer before checking all details
Confusing fare and route expectations with passenger respect
Missing the final clue in SERU set 23

Who this mock is for

Users who need targeted practice on tfL rules in practice without a long retake.

How to practise

How to use Practice mode

Practice mode shows the correct answer and an explanation after every question, with no timer. Use it the first time you sit a topic, when you want to learn as you go, or when you're targeting a specific weak area.

How to use Exam mode

Exam mode gives timed practice for revision. Official timings vary by exam provider and skill, so always check the official test format before booking.

Frequently asked questions

What is the SERU pass mark?: Candidates need to demonstrate competence across all subject areas — the SERU is a competency assessment rather than a simple percentage, and you must pass each module.
How long does the real SERU take?: UK Test Hub SERU mocks use a 30-minute practice timer. Official TfL SERU timing and test-centre arrangements can change, so always check TfL’s current guidance before booking or attending the real assessment.
What do I do if I fail SERU?: You can re-sit, but TfL charges a re-test fee each attempt and may impose a waiting period. Use these mocks until you're consistently scoring well before rebooking.
Is SERU the same as Topographical?: No — Topographical tests map reading and London geography. SERU tests safety, equality and regulation knowledge. Most applicants must pass both.