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GENERAL Learning Environment Category B (B, B1)

Question 260 of 1208

What role does the gearbox have?

A ensures the transmission of power to the wheels;

B allows moving in reverse, without reversing the direction of rotation of the engine;

C allows waiting with the engine running.

See explanation

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Explanation

The gearbox is an assembly of gear wheels that serves to transform force and transmit the rotational movement to different aggregates or vehicles.

Its role is:

ensures the transmission of power to the driving wheels, ensuring, by changing the speed gears, an optimal engine speed, regardless of the rotational speed of the wheels;
allows moving in reverse, without reversing the direction of rotation of the engine, by simply inserting another gear wheel between the primary shaft and the secondary shaft of the gearbox;
allows waiting with the engine running, by bringing the gear lever to the “neutral point”, in which case no transmission ratio is engaged between the two shafts of the gearbox.

The correct answer is: A, B and C

Recommendations:

Mechanics course (knowledge of the main elements) --> Mechanics course

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