Question 1

Which type of automotive bearing can withstand radial and thrust loads, yet must be adjusted for proper clearance?

Accepted Answer

A) Tapered roller bearing 
B) Needle roller bearing 
C) Roller bearing 
D) Ball bearings 
A) Tapered roller bearing 
B) Needle roller bearing 
C) Roller bearing 
D) Ball bearings A

Question 2

When wheel bearings are adjusted with a dial indicator, allow .005" to .010" (.127 to .25 mm) of end play.

Accepted Answer

A) True 
 B)False  False

Question 3

What feature of an axle seal is the arrow point to?

Accepted Answer

A) Garter spring 
B) A return spring 
C) Axle spring 
D) Sealing lip 
A) Garter spring 
B) A return spring 
C) Axle spring 
D) Sealing lip A

Question 4

Technician A says that excessive axial end play is a sign that wheel bearings need service. Technician B says that an out-of-balance wheel is a sign that wheel bearings need service. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 5

Most sealed bearings used on the front wheels of front-wheel-drive vehicles are usually which type?

Accepted Answer

A) Needle roller bearing 
B) Single tapered roller bearing 
C) Double row ball bearing 
D) Roller bearing 
A) Needle roller bearing 
B) Single tapered roller bearing 
C) Double row ball bearing 
D) Roller bearing

Question 6

What type of bearing is shown below?

Accepted Answer

A) Roller bearing 
B) Tapered roller bearing 
C) Axial bearing 
D) Wedge bearing 
A) Roller bearing 
B) Tapered roller bearing 
C) Axial bearing 
D) Wedge bearing

Question 7

Two technicians are discussing differentials. Technician A says that all differentials are vented. Technician B says that a clogged vent can cause the rear axle seal to leak. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 8

The bearing grease most often specified is rated NLGI ________.

Accepted Answer

A) 0 
B) 00 
C) 1 
D) 2 
A) 0 
B) 00 
C) 1 
D) 2

Question 9

Oil contamination of drum brake linings bolted to a solid rear axle may be caused by a ________.

Accepted Answer

A) Plugged axle vent 
B) Leaking grease seal 
C) Both A and B 
D) Neither A nor B 
A) Plugged axle vent 
B) Leaking grease seal 
C) Both A and B 
D) Neither A nor B

Question 10

Wheel bearings are being packed with grease. Technician A says to use grease that is labeled "GC." Technician B says to use grease with an NLGI number of 2. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 11

Which is NOT a bearing problem?

Accepted Answer

A) Frettage 
B) Spalling 
C) Smearing 
D) Stripping 
A) Frettage 
B) Spalling 
C) Smearing 
D) Stripping

Question 12

What is the function of the part the technician is holding (arrow)?

Accepted Answer

A) It is used only for factory assembly and can be discarded. 
B) This component retains the axle in the side gear. 
C) This clip retains the side gears. 
D) None of these 
A) It is used only for factory assembly and can be discarded. 
B) This component retains the axle in the side gear. 
C) This clip retains the side gears. 
D) None of these

Question 13

What type of bearing is shown below?

Accepted Answer

A) Barrel bearing 
B) Flat section bearing 
C) Ball bearing 
D) Roller bearing 
A) Barrel bearing 
B) Flat section bearing 
C) Ball bearing 
D) Roller bearing

Question 14

A non-drive-wheel bearing adjustment procedure includes a final spindle nut tightening torque of ________.

Accepted Answer

A) 12 to 30 lb. -ft. 
B) Finger tight 
C) 5 lb.-in. 
D) 12 to 15 lb. -ft. plus 1/16 in. turn 
A) 12 to 30 lb. -ft. 
B) Finger tight 
C) 5 lb.-in. 
D) 12 to 15 lb. -ft. plus 1/16 in. turn

Question 15

A new bearing can be installed in an old bearing race if the old race is OK.

Accepted Answer

A) True 
 B)False

Question 16

Bearings cannot be diagnosed by turning the wheel and tire assembly by hand.

Accepted Answer

A) True 
 B)False

Question 17

Bearings usually give warning before they fail.

Accepted Answer

A) True 
 B)False

Question 18

The differential cover must be removed before removing the rear axle on which type of axle?

Accepted Answer

A) C-lock 
B) Press fit 
C) Welded tube 
D) Retainer plate 
A) C-lock 
B) Press fit 
C) Welded tube 
D) Retainer plate

Question 19

Two technicians are discussing wheel bearings. Technician A says that conventional tapered roller bearings as used on the front of most rear-wheel-drive vehicles should be slightly loose when adjusted properly. Technician B says that the spindle nut should not be tightened more than finger tight as the final step. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 20

What part should be replaced when servicing a wheel bearing on a non-drive wheel?

Accepted Answer

A) Both the grease seal and the cotter key 
B) The cotter key 
C) The bearing cup 
D) The grease seal 
A) Both the grease seal and the cotter key 
B) The cotter key 
C) The bearing cup 
D) The grease seal

Exam 98: Wheel Bearings and Service

Which type of automotive bearing can withstand radial and thrust loads, yet must be adjusted for proper clearance?

When wheel bearings are adjusted with a dial indicator, allow .005" to .010" (.127 to .25 mm) of end play.

What feature of an axle seal is the arrow point to?

Technician A says that excessive axial end play is a sign that wheel bearings need service. Technician B says that an out-of-balance wheel is a sign that wheel bearings need service. Which technician is correct?

Most sealed bearings used on the front wheels of front-wheel-drive vehicles are usually which type?

What type of bearing is shown below?

Two technicians are discussing differentials. Technician A says that all differentials are vented. Technician B says that a clogged vent can cause the rear axle seal to leak. Which technician is correct?

The bearing grease most often specified is rated NLGI ________.

Oil contamination of drum brake linings bolted to a solid rear axle may be caused by a ________.

Wheel bearings are being packed with grease. Technician A says to use grease that is labeled "GC." Technician B says to use grease with an NLGI number of 2. Which technician is correct?

Which is NOT a bearing problem?

What is the function of the part the technician is holding (arrow)?

What type of bearing is shown below?

A non-drive-wheel bearing adjustment procedure includes a final spindle nut tightening torque of ________.

A new bearing can be installed in an old bearing race if the old race is OK.

Bearings cannot be diagnosed by turning the wheel and tire assembly by hand.

Bearings usually give warning before they fail.

The differential cover must be removed before removing the rear axle on which type of axle?

What part should be replaced when servicing a wheel bearing on a non-drive wheel?

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