Kelias 95LEARNING SPACE
FREIGHT TRANSPORT

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Initial professional qualificationLithuania / EU · C / CE
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QUESTION 081Not studied yet

How does the selected gear affect fuel consumption?

General principlesCompared with sources

Answer

The right gear allows the engine to operate within an economical speed and load range. A gear that is too low or too high can be unfavourable; choose according to driving conditions.

A simple explanation

A gear that is too low can force the engine to run at unnecessarily high speed. A gear that is too high when pulling power is insufficient can also be unfavourable, loading the engine under unsuitable operating conditions. Choose a gear that allows smooth driving within a suitable engine operating range.

REMEMBER

The right gear — enough pulling power without excessive engine speed.

Sources and checks

Editorial review: 2026-09-28.

Learning objective: Relate gear selection to sufficient pulling power and a favourable engine operating range. EU syllabus area: 1.1. The relationship between gear selection, engine speed and load has been checked; the specific favourable engine speed range is left to the engine and transmission instructions.

Answer compared with sources: 2026-09-28.

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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.

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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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