ADT 7-1 Flashcards
Which type of automotive bearing can withstand radial and thrust loads, yet must be adjusted for proper clearance?
Tapered Roller Bearing
Most sealed bearings used on the front wheels of front-wheel-drive vehicles are usually which type?
Double Row Ball Bearing
On a bearing that has been shock loaded, the race (cup) of the bearing can be dented, this type of bearing failure is called ________.
Brinelling
The bearing grease most often specified is rated NLGI ________.
2
A non-drive-wheel bearing adjustment procedure includes a final spindle nut tightening torque of ________.
5 lb. in.
After a non-drive-wheel bearing has been properly adjusted, the wheel should have how much end play?
0.001 - 0.005 in.
The differential cover must be removed before removing the rear axle on which type of axle?
C-lock
What part(s) should be replaced when servicing a wheel bearing on a non-drive wheel?
Both the grease seal and the cotter key
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?
Both Technicians A and B
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?
Both Technicians A and B
The part of the tire that is under just the tread of a radial tire is called the ________.
Belt
The aspect ratio of a tire means ________.
The ratio of height to width
A tire is labeled 215/60R X 15 92T; the T indicates ________.
Speed Rating
A tire is labeled 215/60R X 15 92T; the 92 indicates ________.
Load Rating
Radial tires can cause a vehicle to pull to one side while driving. This is called “radial tire pull” and is often due to ________.
Tire Conicity
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?
Both Technicians A and B
When purchasing replacement tires, do not change tire width from stock size by more than ________.
10mm
What do the letter JJ mean in a wheel designation size labeled 14 X 7JJ?
The shape of the flange area
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?
Technician A only
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?
Technician A only
A tire is worn excessively on both edges. The most likely cause of this type os tire wear is ________.
Underinflation
When seating a bead of a tire, never exceed ________ PSI.
40
For the best tire life, most vehicles and tire manufacturers recommend tire rotation every ________.
6000 miles
What lubricant should be used when mounting a tire?
Water-based Soap
The most common torque specification range for lug nuts is ________.
80-100 lb. ft.
Excessive ________ runout can cause a tramp-type vibration.
Radial
The recommended type of wheel weight to use on aluminum (alloy) wheels is ________.
Coated (painted) lead weights
Most vehicle and tire manufacturers recommend that no more than ________ ounces of balance weight be added to a wheel/tire assembly.
5.5
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?
Both Technicians A and B
Proper tire inflation pressure information can be found on ________ and ________.
The Driver’s door or post.In the Owner’s Manuel.
