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Grade 10 Chapter 65

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which type of tire has the most stable footprint?
a.
Bias ply.
c.
Radial ply.
b.
Belted bias ply.
d.
None of the above.
 

 2. 

In a P-metric tire size designation, what do the last two digits represent?
a.
Load/size relationship.
c.
Section width.
b.
Rim or wheel diameter.
d.
Construction type.
 

 3. 

The relationship of tire height to its width is called its ____.
a.
aspect ratio
c.
width percentage
b.
sidewall/tread ratio
d.
cross-sectional mass
 

 4. 

The two sections of a standard wheel are the rim and the ____.
a.
hub
c.
disc
b.
spider
d.
center
 

True/False
Indicate whether the statement is true or false.
 

 5. 

Wheel lugs and nuts usually have left-hand threads.
 

 6. 

On a non-driving wheel assembly, the wheel and hub spin freely on the spindle.
 

 7. 

A wheel with a safety rim has small ridges to hold the tire bead in place if a blowout occurs.
 

 8. 

An air chuck is the spring-loaded valve threaded into a tire's valve stem.
 

 9. 

The drop-center style of wheel is most common on passenger vehicles.
 

Matching
 
 
Match the following terms and identifying phrases.
a.
spindle
f.
spindle adjusting nut
b.
wheel bearings
g.
nut lock
c.
hub
h.
cotter pin
d.
grease seal
i.
dust cap
e.
safety washer
 

 10. 

Nut threaded on end of spindle to adjust bearing preload.
 

 11. 

Antifriction elements, usually tapered rollers.
 

 12. 

Component that prevents lubricant loss from inner end of hub.
 

 13. 

Metal cup placed over outer end of hub to keep dirt out of bearings.
 

 14. 

Outer housing that holds brake disc or drum, wheel, and wheel bearings.
 

 15. 

Stationary shaft extending out from steering knuckle or suspension system.
 

 16. 

Flat disc of metal that keeps outer wheel bearing from rubbing on adjusting nut.
 

 17. 

Thin, slotted nut that fits over the spindle adjusting nut.
 

 18. 

Soft metal fastener threaded through hole in spindle, adjusting nut, and nut lock.
 
 
Identify each of the marked items on the diagram below.
grp002-1.jpg
 

 19. 

Steering knuckle.
 

 20. 

Drive axle shaft.
 

 21. 

Driving hub.
 

 22. 

Axle washer.
 

 23. 

Power input from transaxle.
 

 24. 

Hub nut.
 

 25. 

Wheel bearings.
 

Completion
Complete each statement.
 

 26. 

Lug nuts thread onto lug ______________________________ to hold the wheel and tire assembly on the hub.
 

 

 27. 

Most modern spare tires are designed for ______________________________ use only.
 

 

 28. 

A tire with an “A” traction classification will provide the ______________________________ traction.
 

 



 
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