How Hard Is the SERU Test? An Honest Look

The honest answer: SERU isn't designed to trick you, but plenty of people underestimate it. It's very passable if you prepare — and surprisingly easy to fail if you don't.

What makes SERU feel hard

• The clock. Around 36 questions in roughly an hour, and being open book tempts people to look things up. That's how they run out of time. See our open-book tips.
• Scenario questions. Many questions describe a situation — a distressed young passenger, a guide dog, an aggressive customer — and ask what you should do. Memorising definitions isn't enough; you need to understand the principle.
• Mixed formats. Sentence completion and reading questions test understanding and English, not just recognition.
• Limited attempts. Knowing you can't just keep retaking it adds pressure. Here's what happens if you fail.

What makes it easier than it looks

• The pass mark is 60%, which leaves room for a few mistakes.
• The topics are practical and sensible — most answers come down to safety, fairness and following the law.
• You know the format in advance, so nothing on the day needs to be a surprise.

How to make it straightforward

Learn each topic properly, then practise under timed conditions until you're clearing 60% comfortably and consistently. Start with the free SERU practice tests and the SERU study guide.

SeruPass is an independent study app, not affiliated with Transport for London.