Power is transmitted from an engine to the rear axle of a vehicle through___________________?
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Answer: C. Hooke’s joint
Explanation
Power is transmitted from an automobile engine to the rear axle through a universal joint or Hooke joint assembly. This coupling allows torque transmission between transmission output shafts and sloping drive shafts. It accommodates continuous angular misalignment caused by vehicle suspension movement over uneven roads. Hooke joints use a central spider cross connected to yokes to transmit rotational motion smoothly. Drive shafts equipped with universal joints connect front engine layouts to rear axle differentials. Constant velocity joints are often used in modern front wheel drive vehicles to eliminate speed fluctuations.
Automotive mechanics inspect universal joints regularly to prevent driveline vibrations and mechanical failure. Rear wheel drive trucks and performance cars rely heavily on multi-jointed propeller shafts. Proper lubrication of universal joint needle bearings ensures long operational lifespans under heavy torque loads. Compound gears are used inside transmissions or gearboxes rather than connecting remote vehicle axles. Worm and wheel mechanisms provide high gear reductions in steering boxes rather than rear axle drives. Crown gears are found inside differential housings rather than serving as the primary intermediate axle coupling.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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