ADT 7-1

Question 1

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

Answer 1

Tapered Roller Bearing

Question 2

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

Answer 2

Double Row Ball Bearing

Question 3

On a bearing that has been shock loaded, the race (cup) of the bearing can be dented, this type of bearing failure is called ________.

Answer 3

Brinelling

Question 4

The bearing grease most often specified is rated NLGI ________.

Answer 4

2

Question 5

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

Answer 5

5 lb. in.

Question 6

After a non-drive-wheel bearing has been properly adjusted, the wheel should have how much end play?

Answer 6

0.001 - 0.005 in.

Question 7

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

Answer 7

C-lock

Question 8

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

Answer 8

Both the grease seal and the cotter key

Question 9

Technician A says that a defective wheel or axle bearing often makes a growling or rumbling noise. Technician B says that a defective wheel or axle bearing often makes a noise similar to a tire with an aggressive mud or snow design. Which technician is correct?

Answer 9

Both Technicians A and B

Question 10

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

Answer 10

Both Technicians A and B

Question 11

The part of the tire that is under just the tread of a radial tire is called the ________.

Answer 11

Belt

Question 12

The aspect ratio of a tire means ________.

Answer 12

The ratio of height to width

Question 13

A tire is labeled 215/60R X 15 92T; the T indicates ________.

Answer 13

Speed Rating

Question 14

A tire is labeled 215/60R X 15 92T; the 92 indicates ________.

Answer 14

Load Rating

Question 15

Radial tires can cause a vehicle to pull to one side while driving. This is called “radial tire pull” and is often due to ________.

Answer 15

Tire Conicity

Question 16

Tire inflation is very important to the safe and economical operation of any vehicle. Technician A says that the tire pressure should never exceed the maximum pressure imprinted on the sidewall of the tire. Technician B says to inflate the tires to the pressure recommended on the tire information decal or placard on the driver’s door. Which technician is correct?

Answer 16

Both Technicians A and B

Question 17

When purchasing replacement tires, do not change tire width from stock size by more than ________.

Answer 17

10mm

Question 18

What do the letter JJ mean in a wheel designation size labeled 14 X 7JJ?

Answer 18

The shape of the flange area

Question 19

Technician A says that a PAX run-flat tire uses a special wheel. Technician B says that a standard tire can be used to replace a PAX run-flat tire. Which technician is correct?

Answer 19

Technician A only

Question 20

Technician A says that a tire-pressure monitor system that uses a valve stem type transmitter is the direct-reading type of TPMS. Technician B says that a tire-pressure monitoring system that uses a sensor inside and strapped to the wheel is an indirect-reading type of TPMS. Which technician is correct?

Answer 20

Technician A only

Question 21

A tire is worn excessively on both edges. The most likely cause of this type os tire wear is ________.

Answer 21

Underinflation

Question 22

When seating a bead of a tire, never exceed ________ PSI.

Answer 22

40

Question 23

For the best tire life, most vehicles and tire manufacturers recommend tire rotation every ________.

Answer 23

6000 miles

Question 24

What lubricant should be used when mounting a tire?

Answer 24

Water-based Soap

Question 25

The most common torque specification range for lug nuts is ________.

Answer 25

80-100 lb. ft.

Question 26

Excessive ________ runout can cause a tramp-type vibration.

Answer 26

Radial

Question 27

The recommended type of wheel weight to use on aluminum (alloy) wheels is ________.

Answer 27

Coated (painted) lead weights

Question 28

Most vehicle and tire manufacturers recommend that no more than ________ ounces of balance weight be added to a wheel/tire assembly.

Answer 28

5.5

Question 29

A vehicle vibrates at highway speed. Technician A says that water in the tire(s) could be the cause. Technician B says that an out-of-round tire could be the cause. Which technician is correct?

Answer 29

Both Technicians A and B

Question 30

Proper tire inflation pressure information can be found on ________ and ________.

Answer 30

The Driver’s door or post.In the Owner’s Manuel.