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12-21-2023 All wheel drive

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

What is the purpose of the slip yoke on the driveshaft?

a)

It allows for up-and-down movement of the suspension

b)

It enables the driveshaft to accommodate worn u-joints

c)

It allows for a change of driveshaft angle during turns

d)

It enables the differential to work at different angles

2.

All of these are drivetrain components EXCEPT?

a)

Driveshafts

b)

Balance Shafts

c)

Final Drives

d)

Drive Axles

3.

All front-engine front-wheel drive vehicles use a traverse -mounted engine coupled to a transaxle

a)

True

b)

False

4.

In a transverse front-wheel drive layout application, the transaxle is normally mounted at the ___________ of the engine and a primary shaft engages with the splines of the clutch center plate.

a)

Front

b)

Rear

c)

Center

d)

Side

5.

Vehicles with independent rear suspension have:

a)

Live rear axles

b)

Leaf springs

c)

Driveshafts in axle housings

d)

Driveshafts with flexible joints on both ends

6.

In vehicles with an independent rear suspension, the final drive unit is mounted on the chassis frame, and drive is transferred to each road wheel through external driveshafts (half-shafts), which have flexible joints on each end.

a)

True

b)

False

7.

Choose the correct statement:

Select one:

a)

Most front-engine front-wheel drive vehicles use a longitudinal-mounted engine.

b)

Front-wheel drive power reaches the rear wheels through the transaxle.

c)

.

In a transverse-mounted engine, the front of the engine is facing the front of the vehicle.

d)

Power is transmitted in a straight line from the engine through the transaxle and out to the front axles.

8.

All of these apply to vehicles with live solid rear axles EXCEPT:

a)

the struts absorb road shocks and bumps.

b)

there's a continuous change of distance between the output shaft and final drive pinion.

c)

the drive shaft angle changes relative to its connections.

d)

the final drive pinion nose angle changes when accelerating or braking.

9.

With a(n) _____, drive from the engine is transmitted to a rear axle assembly by a drive (propeller) shaft.

a)

Solid rear drive layout

b)

All-wheel drive layout

c)

Front-wheel drive layout

d)

Rear-wheel drive layout

10.

In a conventional rear-wheel drive vehicle, the engine and transmission are mounted:

a)

longitudinally at the front.

b)

transversely at the front.

c)

longitudinally at the rear.

d)

transversely at the rear.

11.

A transfer case is most often used in a(n):

a)

front-wheel drive (FWD) vehicle

b)

four-wheel drive (4WD) vehicle

c)

rear-wheel drive (RWD) vehicle

d)

vehicle with a dead axle.

12.

Newer designs in 4WD pickup trucks and SUVs use constant velocity (CV) joint type front axles.

a)

True

b)

False

13.

In a 4-wheel drive vehicle, final drives are found:

a)

In the front of the vehicle

b)

In the rear of the vehicle

c)

both in the front and rear of the vehicle.

d)

in neither the front or rear of the vehicle.

14.

Tech A says that part time four wheel drive does not use a transfer case. Tech B says that constant-velocity joints are used on some four-wheel drive vehicles. Who is correct?

a)

Tech A

b)

Tech B

c)

Both

d)

Neither

15.

______ transmits power to the front and rear drive axles at normal drive speed.

a)

Four-wheel drive low range

b)

Four-wheel drive high range

c)

Two-wheel drive

d)

Neutral

16.

Technician A says that driveline binding can be caused by tires that have different circumferences. Technician B says that tires can be shaved to even out tire circumferences. Who is correct?

a)

Tech A

b)

Tech B

c)

Both

d)

Neither

17.

In all-wheel drive vehicles only two of the wheels are normally powered, typically the rear wheels.

a)

True

b)

False

18.

The transfer case is a device designed to split the power from the transmission to the ______ when four-wheel drive is selected.

a)

Front-drive axles

b)

Rear-drive axles

c)

Both A and B

d)

Neither A nor B

19.

Technician A says that in all-wheel-drive vehicles, locked differentials are used to ensure ease in driving around curves. Technician B says that a third set of differential gears is used to allow turning and driving into curves. Who is correct?

Select one:

a)

Technician A

b)

Technician B

c)

Both A and B

d)

Neither A nor B

20.

In some vehicles, when the transfer case's low range option is selected, a geared electric motor automatically operates an engagement sleeve splined to the _______.

Select one:

a)

Front output shaft

b)

Front input shaft

c)

Back output shaft

d)

Back input shaft

21.

When the transfer case of an all-wheel-drive vehicle is in high range the wheels:

Select one:

a)

are allowed to rotate at different speeds.

b)

rotate at the same speed.

c)

gain more traction on loose road surfaces.

d)

are locked and cannot turn.

22.

The TCM does not have the ability to memorize driver preferences/behaviors.

Select one:

a)

True

b)

False

23.

Mechanical shifting controls can wear out over time, and electrical problems may develop due to _____.

Select one:

a)

Corrosion

b)

Looseness

c)

Both A and B

d)

Neither A nor B

24.

Vacuum controls have rubber diaphragms in them, heat and moisture can cause them to deteriorate over time.

Select one:

a)

True

b)

False

25.

Technician A says that mechanical shifting controls can wear out over time. Technician B says that vacuum control rubber diaphragms can deteriorate over time. Who is correct?

Select one:

a)

Technician A

b)

Technician B

c)

Both Technician A and Technician B

d)

Neither Technician A nor B

26.

Wheel bearings and hubs are subject to wheel rim offsets that throw off the wheel's scrub _____ and cause premature failure of the bearings and hubs.

Select one:

a)

Radius

b)

Circumference

c)

Diameter

d)

Hypotenuse

27.

Four-wheel drive vehicles have either automatic locking hubs or manual locking hubs.

Select one:

a)

True

b)

False

28.

All of the following are used for shift controls for engaging transfer cases EXCEPT:

Select one:

a)

mechanical.

b)

vacuum.

c)

hydraulic.

d)

electrically motorized.

29.

What part is this?

a)

Wiper motor

b)

Differential motor

c)

Rzeppa motor

d)

Transfer case motor

30.

What is the smaller lever?

a)

Manual transmission shift lever

b)

Automatic transmission shift lever

c)

Transfer case shift lever

d)

Overdrive

31.

A transfer case is only used in a four wheel drive vehicle but not in an all wheel drive vehicle.

a)

True

b)

False

32.

On a four wheel drive vehicle that has the two wheel drive option selected, the vehicle will have _________ dead axle(s).

a)

0

b)

1

c)

2

d)

None of the above

33.

A live axle is __________ driven.

a)

gear

b)

torque

c)

hydraulically

d)

all of the above

34.

The component that allows the torque to split between the front and the read axles is called?

a)

Transmission

b)

Differential

c)

Transfer case

d)

U joints

35.

How can transfer case be activated?

a)

Manually

b)

Electronically

c)

Vacuum

d)

All of the above

36.

In a front-wheel drive the differential is located _______ the transaxle and is driven by the secondary shaft, which is connected to the pinion drive gear.

a)

On top of

b)

Inside of

c)

On the bottom of

d)

To the left of

37.

Backlash is the amount of movement between the differential pinion gear teeth & the differential ring gear teeth.

a)

True

b)

False

38.

What are the two most common types of limited slip differentials in use?

a)

Clutch & gear

b)

Cone & roller

c)

Friction & antifriction

d)

Sprag and one-way

39.

A vehicle with ______________ will overcome the loss of traction by applying more power to the wheel that is not slipping by applying the brake on the wheel that is slipping.

a)

A limited slip differential

b)

Traction control

c)

An active suspension system

d)

An adaptive cruise control

40.

The ___________________ assembly provides the final gear reduction necessary for drivetrain operation

a)

Pinion gear

b)

Ring gear

c)

Driveshaft

d)

Final drive

41.

Preventive maintenance of a final drive assembly, regardless of its design, is important, as these axles are filled with special lubricants that promote long life and maintain quiet operation of the gears.

a)

True

b)

False

42.

The clutch-style limited slip differential uses a multi-plate clutch pack between each side gear and the differential case.

Select one:

a)

True

b)

False

43.

Technician A says that threaded rings are used to set the carrier bearing preload in some differentials. Technician B says that shims are used to adjust carrier bearing preload in some vehicles. Who is correct?

a)

Technician A

b)

Technician B

c)

Both A and B

d)

Neither A nor B

44.

Most vehicle manufacturers today use a gear-style limited slip differential design rather than the clutch-type design.

Select one:

a)

True

b)

False

45.

How many styles of limited slip differentials are mainly in use?

a)

2

b)

3

c)

4

d)

5

46.

Technician A says that the final drive assembly can be found in the front of the vehicle or the rear of the vehicle. Technician B says that the final drive assembly will be found only in the rear of the vehicle. Who is correct?

Select one:

a)

Technician A

b)

Technician B

c)

Both A and B

d)

Neither A nor B

47.

On all of the final drive assemblies manufactured today, the anti-lock brake system (ABS) wheel speed sensor is incorporated in them.

a)

True

b)

False

48.

Technician A says that when a vehicle is going straight, the side gears rotate two times faster than the pinion gears. Technician B says that when a vehicle is going straight, the pinion and side gears are going the same speed. Who is correct?

a)

Technician A

b)

Technician B

c)

Both A and B

d)

Neither A nor B

49.

The outside plate of a clutch style limited slip differential is _______ to provide initial tension on the clutch pack when the two halves of the carrier are assembled.

Select one:

a)

Dished

b)

Cup shaped

c)

Both A and B

d)

Neither A nor B

50.

Final drives can be found in _______.

Select one:

a)

Axles at the rear of the vehicle

b)

Axles at the front of the vehicle

c)

The transaxle of a front-wheel drive vehicle

d)

All of the above

51.

In a rear-drive vehicle, the ring gear is bolted to:

Select one:

a)

the pinion bearing.

b)

the differential carrier.

c)

rear frame.

d)

the leaf spring shackles.

52.

In all axle designs, threaded adjusting rings engage with threads in the housing and will push against the side bearings of the carrier.

Select one:

a)

True

b)

False

53.

Technician A says that the differential assembly allows the tires to travel at different speeds when going around a corner. Technician B says that without the differential, the tires might skip and slide when the vehicle goes around a corner. Who is correct?

Select one:

a)

Technician A

b)

Technician B

c)

Both A and B

d)

Neither A nor B

54.

The most technically accurate description of a differential is that a differential:

Select one:

a)

forces the two axles to turn at the same speed.

b)

allows the axles to turn at different speeds.

c)

is there to provide a place to connect the driveshaft.

d)

is driven by the rear wheels.

55.

The gear(s) that directly drive the drive axles is/are:

Select one:

a)

the side gears.

b)

the pinion gears.

c)

the ring gear.

d)

the drive pinion gear.

56.

Some axle designs, shims are used to push against the side bearings to adjust _______.

Select one:

a)

Bearing preload

b)

Backlash

c)

Both A and B

d)

Neither A nor B

57.

Backlash clearance is the amount of clearance between:

Select one:

a)

the ring gear and the side gears.

b)

the pinion gear and the differential case.

c)

the side gears and the pinion gears.

d)

the ring gear and the pinion gear.

58.

Name this part?

a)

Pinion Gear

b)

Ring Gear

c)

Rzeppa Joint

d)

Flywheel

59.

What is this?

a)

Ring Gear

b)

Pinion Gear

c)

Rzeppa Joint

d)

Input Shaft

60.

What part is this?

a)

Rzeppa Joint

b)

CV Joint

c)

Universal Joint

d)

Double Cardan Joint