Kelias 95LEARNING SPACE
FREIGHT TRANSPORT

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Initial professional qualificationLithuania / EU · C / CE
30 / 300
QUESTION 030Not studied yet

Before a journey, the air-brake system does not reach the operating pressure specified in the instructions and the low-pressure warning remains on. May you set off?

Air brakes • pre-journey checksCompared with sources

Answer

No. Do not set off; record and report the defect, and arrange inspection and repair. Start the journey only once the system has been confirmed to operate safely.

Please note

Use the specific vehicle's instructions for pressure limits and test procedures. If a defect becomes apparent while driving, first stop safely.

A simple explanation

Compressed air is essential for the proper operation of the air-brake system. Checks assess pressure build-up, leaks, warnings, and the tractor unit's and trailer's brakes. A low-pressure warning must not be disregarded in the hope that the retarder or the remaining braking capacity will be sufficient.

REMEMBER

Insufficient pressure and a warning – not ready for the journey.

Sources and checks

Editorial review: 2026-09-28.

Learning objective: Refuse to start a journey when the air brakes are not ready for use. EU syllabus area: 1.2. Sections 3, 6 and 20 of the DVSA checks and the defect-reporting section were reviewed. This provides a safety decision, not a rule on Lithuanian administrative penalties.

Answer compared with sources: 2026-09-28.

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Learning together and feedback

Try it together in 25–30 minutes

For an instructor and a small group: choose one C/CE freight transport topic in the Lithuania and EU context. Use your own devices, including a phone and a computer.

  1. 3 questions. In ‘Recall’ mode, first answer in your own words, then read the explanation and mark what needs more review.
  2. A lesson and a diagram. Discuss what they explain and which conditions matter.
  3. One scenario. Decide before revealing the solution. Explain the reasons for your chosen action.
  4. A few quiz questions. Read the explanation for each option. You can finish the quiz early; the remaining questions will be marked as unanswered.
  5. Discussion. Everyone names one useful point and one thing that needs correcting.

How can you share or suggest a correction?

You will find the question link and feedback field below this section. Lessons, diagrams and scenarios have their own ‘Copy link’ button. ‘Suggest a correction’ helps you prepare a note with the specific link and version label. Copy or download the text and pass it on for review.

Discuss: is it easy to find an answer and return to the question? Can you explain the reason and the limits of the rule's application? Which sentence is misleading? Flag any significant legal or safety uncertainty for checking before using the material.

Translated from the Lithuanian edition. The material concerns Lithuania and the EU; source-check dates refer to the Lithuanian answers.

Study materials for C/CE drivers: 300 questions with explanations, lessons, quizzes and practical scenarios. Based on Lithuania's and EU rules.

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