Step 3 » GENERAL learning environment Category C (C, C1)

GENERAL Learning Environment Category C (C, C1)
Question 484 of 533

Which of the following defects produce strong vibrations during the movement of the truck?

A wear of the gears of the gearbox;
B breaking of the longitudinal transmission;
C the unbalancing of the cardan shafts.

Explanation

The cardan shafts transmit the power from the gearbox to the driving axle and must be balanced to prevent vibrations. If they are unbalanced due to wear, impacts or incorrect mounting, a mass unbalance appears which generates strong vibrations during movement, intensifying as the speed increases. These vibrations can affect both comfort and the components of the transmission and suspension, being one of the most frequent causes of strong vibrations in trucks.

The correct answer is: C


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

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