Wheels, Tires, and Bearings

Which type of tire has the most stable footprint?

• Bias ply.
• Belted bias ply
• Radial ply
• None of these

In a P-metric tire size designation, what do the last two digits represent?

• Load/size relationship
• Rim or wheel diameter.
• width percentage
• cross-sectional mass

The relationship of tire height to its width is called its ____.

• aspect ratio
• sidewall/tread ratio
• width percentage
• cross-sectional mass

The two sections of a standard wheel are the rim and the ____.

• hub
• spider
• disc
• center

All vehicles with a GVW under 10,000 lbs sold on or after 9/1/2007, are equipped with a ____.

• spare tire
• cupholder
• Tire Pressure Monitoring System (TPMS)
• locking lugnuts

Today’s tires are filled with air, meaning they are ____.

• lightweight
• hydraulic
• pneumatic
• cheaper

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

• True
• False

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

• True
• False

Most modern spare tires are designed for _________ use only.

• temporary
• offroad
• high speed
• dealership

_______ is the metal cup placed over outer end of hub to keep dirt out of bearings.

• rim
• wheel cover
• spindle
• dust cap