Kelias 95LEARNING SPACE
FREIGHT TRANSPORT

Learn and understand

Initial professional qualificationLithuania / EU · C / CE
43 / 300
QUESTION 043Not studied yet

How can psychoactive drugs affect driving?

General principlesCompared with sources

Answer

Psychoactive drugs can impair reactions, attention, judgement and coordination. Their effects vary, but how you feel is not reliable evidence of your ability to drive safely.

Please note

The effects depend on the substance, dose and combinations; using them with alcohol can further impair driving ability.

A simple explanation

Different substances can cause sedation, distort perception or encourage risky behaviour. Drivers may assess their own abilities inaccurately even when they feel capable of driving.

REMEMBER

How you feel does not show whether it is safe to drive.

Sources and checks

Editorial review: 2026-09-27.

Learning objective: Assess the effects of psychoactive substances and the limitations of self-assessment. EU syllabus area: 3.4. NHTSA lists differences in the effects of substances and the unreliability of self-assessment.

Answer compared with sources: 2026-09-27.

How well do you know this question?

Search uses the selected topic and marks. A number + Enter opens any question.

Question map
RememberedReviewUpdated
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.

Kelias 95 on your computer

Install the app and learn in a separate window. Open it from your computer's apps menu or pin it to the taskbar.

  1. Open kelias95.kristalai.eu using Chrome or Microsoft Edge.
  2. Look for the install icon in the address bar. You can also choose ‘Install this page as an app’ in the browser menu. In Edge, this option is under ‘Apps’.
  3. Confirm installation. The app will open in a separate window.

An internet connection is required. Installing from the same browser profile uses the learning progress saved there. It is not automatically transferred to another browser or device.