10.6 Exercises for Unit 10

1. What component of a drive shaft assembly provides free movement in a horizontal direction and is capable of transmitting torque?

A. Slip yoke
B. Rear yoke
C. Front universal joint
D. Rear universal joint

2. What type of drive shaft is enclosed and rotates within a support bearing to prevent whipping?

A. Hotchkiss
B. Companion
C. Flange tube
D. Torque tube

3. What type of universal joint is most often used?

A. Double cardan
B. Ball and trunnion
C. Cross and roller
D. Bendix-Weiss

4. When the driven shaft of a Rzeppa CV joint is moved 30 degrees, the cage and balls move what number of degrees?

A. 30
B. 20
C. 15
D. 10

5. Which is NOT a function of a pillow block bearing in an auxiliary power train?

A. To support the drive shaft.
B. To maintain drive shaft alignment.
C. To prevent whipping under heavy loads.
D. To prevent shimmy and poor control.

6. Which condition indicates that a center support bearing is faulty?

A. Whining noise in the drive line
B. Failure of the vehicle to start moving smoothly
C. Frequent stalling when the clutch is engaged
D. Vibration from the chassis at low speeds

7. When performing a drive shaft inspection, what action do you take to check the U-joints?

A. Move them by prying with a pry bar.
B. Completely disassemble the joints.
C. Measure the play between the cross and roller.
D. Wiggle and rotate each joint back and forth.

8. In what gear is a worn universal joint most often noticed?

A. Fourth
B. Third
C. First
D. Reverse

9. When you are removing the drive shaft from a vehicle, what component can be damaged if you allow the full weight of the drive shaft to hang from the slip yoke?

A. Rear U-joint
B. Front bushing
C. Extension housing
D. Support bearing

10. When reassembling a universal joint, you should use what type of lubricant to prevent the bearings from falling out of the bearing cap?

A. High-temperature grease
B. Wheel bearing grease
C. Water pump lubricant
D. Vaseline

11. When replacing the center support bearing, which condition should you ensure takes place?

A. Bearing shield contains grease.
B. Grease fitting is in place.
C. Dust shield is placed in its grooves correctly.
D. Drive shaft alignment is maintained.

12. Which is a function of the differential in an automotive vehicle?

A. Connects the rear axles’ shafts.
B. Allows the axles to turn at different speeds when cornering.
C. Permits the driving axles to be driven as a single unit.
D. Transmits power indirectly to the drive axles.

13. What type of differential carrier is constructed as part of the axle housing?

A. Removable
B. Pinion
C. Integral
D. Axial

14. What component of a differential assembly holds the ring gear, the spider gears, and the inner ends of the axles?

A. Case
B. Carrier
C. Final drive
D. Windlass

15. The outer end of the pinion gear is joined to the rear U-joint companion flange by what components?

A. Bolts
B. Lock rings
C. Splines
D. Snap rings

16. What component of a differential drives the ring gear?

A. Side gear
B. Spider gear
C. Spiral bevel gear
D. Pinion gear

17. Which gear ratio of a final drive provides a substantial increase in acceleration but decreases fuel economy?

A. 4.11
B. 3.71
C. 3.50
D. 2.78

18. What type of final drive has the pinion gear meshing with the ring gear below the center line and at a slight angle?

A. Hypoid
B. Spiral bevel
C. Double reduction
D. Limited slip

19. In a two-speed final drive, what component is placed between the differential drive ring gear and the differential case?

A. Clutch pack
B. Cone clutch
C. Planetary gear train
D. Sliding pinion gear

20. In a clutch pack type limited-slip differential, clutch packs are applied by the

A. centrifugal force of the spider gears and spring pressure
B. friction of the steel disc and spring pressure
C. spring force and the thrust action of the spider gears
D. side pinion gears walking inside the side gears

21. Under rapid acceleration, the differential pinion gears of a cone clutch limited-slip differential push outward on what components?

A. Side gears
B. Cone gears
C. Flange casings
D. Drive axles

22. What condition is generally accepted as the first hint of differential troubles?

A. Loss of traction
B. Vehicle vibration
C. Loss of lubricant
D. Unusual noises

23. Which differential trouble will produce a humming noise?

A. Lack of lubrication
B. Improperly adjusted ring and pinion gears
C. Improperly adjusted pinion and side gears
D. Excessive backlash

24. Which condition generates a clunking sound in the differential?

A. Faulty differential gears
B. Worn axle support bearings
C. Excessive backlash between the ring-and-pinion gears
D. Loose carrier bearings

25. The ideal tooth contact pattern on a used gear will have considerably more contact in which area of the gear?

A. Toe
B. Heel
C. Drive side
D. Coast side

26. Which condition permits the drive shaft of a front drive axle to pass beside the engine oil?

A. Using a constant velocity joint.
B. Using an intermediate drive shaft.
C. Using a transfer case.
D. Having an off-center differential housing.

27. In the front drive axle of a four-wheel drive vehicle, what component transfers power from the drive axles to the drive wheels?

A. Locking hubs
B. Interconnecting shaft
C. Outer stub shaft
D. Sliding hub

28. What type of axle housing is most often used?

A. One-piece
B. Two-piece
C. Guitar
D. Banjo

29. Why are automotive axle housings vented?

A. To cool the lubricant.
B. To prevent pressure buildup.
C. To prevent overfilling.
D. To adjust for loads.

30. Where are the vehicle weight-supporting bearings in a full-floating axle located?

A. At the inner end of the axle housing
B. On the outer end of the axle shaft
C. On the outer end of the axle housing
D. At the inner end of the axle shaft

31. In a front-wheel drive vehicle, what component of the front-wheel drive axle is splined to the side gears in the differential?

A. Interconnecting shaft
B. Outer stub shaft
C. Inner stub shaft
D. Rzeppa joint

32. What action allows for a change in distance between the transaxle and the wheel hub?

A. Plunging action of the outer CV joint
B. Plunging action of the inner CV joint
C. Sliding action of the short shaft spline to the side gears
D. Sliding action of the interconnecting shaft

33. Worn or damaged axle bearings produce what type of sound?

A. Clunking
B. Grinding
C. Humming
D. Growling

34. To help ensure axle bearing problems do NOT reoccur, you should take what action?

A. Determine the cause of the part failure.
B. Perform all repairs according to the manufacturer’s manual.
C. Follow the shop supervisor’s instructions.
D. Install a higher quality part.

35. When removing a pressed-on bearing collar from an axle, you should use which tool?

A. Cutting torch
B. Hand grinder
C. Slide hammer
D. Bearing puller

36. When removing an axle bearing using a hydraulic press, you should place the driving tool so it contacts what area of the bearing?

A. Outer race
B. Inner race
C. Bearing collar
D. Bearing sleeve

37. What is the proper tool for removing a housing-mounted axle seal?

A. Hand grinder
B. Pry bar
C. Cutting torch
D. Slide hammer

38. What component is used to divide engine torque between the front and rear driving axles?

A. Power takeoff
B. Auxiliary transmission
C. Transfer case
D. Power divider

39. Shifting is accomplished in a gear type transfer case by what component?

A. Sliding cone clutch
B. External shifting rail
C. Slide hammer
D. Sliding dog clutch

40. When an operator reports that the transfer case is hard to shift, which problem is NOT a possible cause?

A. Excessive end play
B. Clutch slippage
C. Bent linkage
D. Improper linkage lubrication

41. A power takeoff unit is driven by what shaft of the transmission?

A. Main shaft
B. Countershaft
C. Idler shaft
D. Accessory drive shaft

42. Faulty operation of a power takeoff unit is caused by which problem?

A. Damaged linkage
B. Improper spacing between the meshing gears
C. Excessive end play
D. Worn bearings