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Driving Licence4 min read

The traffic signs that fail the most licence candidates

The written test is 25 questions and you need 15 right. Almost all the difficulty comes from three confusions, not from the number of signs.

CContent teamLicence bank editors · 19 July 2026 · updated 28 August 2026

The Department of Transport Management's written test is short and entirely learnable, and it is failed constantly. Twenty-five multiple-choice questions, thirty minutes, and a pass mark of sixty per cent, which means fifteen correct answers. Ten wrong is a fail.

When we looked at where wrong answers cluster in our licence question bank, the distribution was not flat. A small number of signs accounted for a large share of every mistake.

Driving licence written test structure

15correct to pass
  • Needed to pass60%
  • Margin available40%

The written test has 25 multiple-choice questions and a pass mark of 60 per cent. Fifteen correct answers pass; ten wrong answers fail.

The written test, in numbers. Fifteen correct answers is the whole requirement.

The pattern behind the failures

Almost all of the difficulty comes from three confusions, not from a long list of separate facts.

ConfusionWhat it looks likeWhy it spreads
Prohibition vs restrictionA red circle with a bar means you must not. A red circle without one means a limit applies.Learn it once and you stop losing marks across an entire family of signs.
Warning vs mandatoryTriangles warn about something ahead. Blue circles instruct you to do something.Mixing these produces confident wrong answers, which are the worst kind.
Near-identical shapesSeveral signs differ by one internal element only.Under time pressure candidates match on the outline and stop looking.
The three confusions, and what each one costs you across a whole family of signs.

Why images matter more than anything else here

A large number of licence preparation materials describe signs in words. The exam shows you the sign. Practising on descriptions builds the wrong retrieval path entirely. You end up able to answer what a red circle with a white bar means, and unable to recognise it on the page.

Every sign question in our bank is an image, for exactly this reason. It is the single most important thing about how licence material should be built, and it is routinely got wrong.

How most people revise

  • Read a list of sign names and meanings
  • Study signs in alphabetical or catalogue order
  • Practise on text descriptions
  • Cram the night before the test

What actually transfers

  • See the image, name the meaning, check
  • Study confusable signs side by side
  • Practise only on images, as the exam presents them
  • Twenty minutes a day for three days

A three-day plan for the written test

This is genuinely enough time for most people, which is why failing it is so frustrating.

  1. 1

    Day one: the three confusions

    Learn prohibition against restriction, and warning against mandatory. Do nothing else. These two distinctions cover most of the sign set.

  2. 2

    Day two: contrasting pairs

    Work through the signs that differ by one element, always side by side. Cover the labels and name each one from the image alone.

  3. 3

    Day three: rules, penalties and a full mock

    Right of way, overtaking, speed limits, documents to carry. Then a timed 25-question set under the real thirty minutes.

Frequently asked questions

How many questions are in the Nepal driving licence written test?
Twenty-five multiple-choice questions in thirty minutes. The pass mark is 60 per cent, so you need fifteen correct answers.
What is the difference between category A and category B?
Category A covers two-wheeled vehicles such as motorcycles and scooters. Category B covers cars and jeeps. The written test draws on the same road-rules and signs material; the practical trial differs substantially.
What happens after the written test?
Passing the written test makes you eligible for the practical trial, which is the final step. Category B candidates complete a figure-of-eight track and a hill start; category A candidates ride a narrow track without putting a foot down.
Do I need to memorise every traffic sign?
You need to recognise them, which is a lower bar than reciting them. Recognition practice on images is the efficient route; memorising descriptions is not.
Driving licence preparationEvery mandatory, cautionary and informatory sign as an image, plus road rules, penalties and timed mock tests. Free, permanently.

Twenty minutes a day for three days clears the written test for most people. It is short enough that there is no good reason to fail it, which is why the entire licence bank on our platform is free and always will be. Charging for this would make us slightly more money and make the roads slightly worse.

About this article

Written by the licence bank editors at iSmartExams in Kathmandu. Exam formats change, and this article states the pattern as we understand it at the time of writing — always check the current notice for the sitting you are entering. If something here is wrong, tell us. We would rather correct it than leave it standing.

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Driving Licence

Reading about it is the easy part.

Everything in this article describes something you can start doing today. Open the practice bank for this exam and find out where you actually stand.