Examkin

Question

Difficulty: MediumDriveshafts and Differentials

Match each automotive driveshaft or differential component with its primary mechanical function in the vehicle drivetrain.

  • Slip yokeAccommodates changes in driveshaft length caused by rear suspension movement
  • Universal jointAllows rotational torque transfer through changing operational angles
  • Drive pinion gearTransfers rotational force from the driveshaft to the ring gear at a 90-degree angle
  • Differential spider gearPermits left and right axle shafts to rotate at different speeds when cornering

Answer

The slip yoke accommodates changes in driveshaft length during suspension travel; the universal joint allows torque transfer across operating angles; the drive pinion gear transfers torque to the ring gear at a 90-degree angle; and the differential spider gears permit the left and right axle shafts to rotate at different speeds while cornering.
Each component serves a distinct role in transferring rotational power from the transmission to the wheels: the slip yoke compensates for driveshaft length variations during suspension travel; the universal joint accommodates changing driveline angles; the drive pinion gear rotates the ring gear to turn power 90 degrees; and the differential spider gears allow outer and inner drive wheels to turn at different speeds during cornering.

Step-by-Step Solution

1
Analyze the linear motion requirements of the driveshaft.
Identify that as the rear suspension compresses and rebounds, the distance between the fixed transmission and the moving rear axle changes. The slip yoke accommodates this linear distance variation.
Prevents severe axial thrust loading on transmission and differential bearings.
2
Analyze the angular motion requirements of the driveshaft.
Identify that the driveline angle changes dynamically as the rear axle articulates over road irregularities. Universal joints allow torque transmission through varying angles.
Allows torque to transfer smoothly across non-collinear rotating shafts.
3
Analyze the torque direction change and reduction entering the differential.
Identify that the drive pinion gear receives driveshaft rotation along the longitudinal vehicle axis and drives the perpendicular ring gear, changing power flow 90 degrees.
Converts longitudinal rotational motion to transverse axle rotation.
4
Analyze the cornering differential speed requirement.
Identify that the differential spider gears mesh with the left and right side gears, rotating on the differential pin when one wheel must turn faster than the other.
Eliminates tire scrub and driveline binding when cornering.

Key Concept

Automotive Drivetrain and Differential Component Functions
Estimated Time:1m 0s
Rate this question

Topics

Driveshafts and Differentials

More questions from this topic