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What is hydroplaning?

• A method for increasing tire traction on wet roads

• A loss of vehicle control caused by water preventing the tire’s tread from contacting the road

• The process of adding water-resistant coating to tires

• A technique for improving rolling resistance

What is an inner race in a wheel bearing?

• A steel cup or cone that serves as the inner surface for wheel bearing rotation

• A rubber layer inside the tire to prevent leaks

• A threaded bolt used to secure the wheel to the axle hub

• A type of safety washer used in the hub assembly

What is the purpose of an inner tube in older tires?

• To increase traction on wet surfaces

• To provide a leak-proof membrane inside tubeless tires

• To accept air pressure to inflate the tire

• To secure the wheel to the axle hub

What is a lug bolt?

• A bolt used to hold the tire beads in place

• A threaded bolt that screws into the axle hub or flange to hold the wheel

What is a lug nut used for?

• To keep the wheel bearing in place

• To thread onto a lug stud and hold the wheel on the axle hub

• To reduce rolling resistance in the tire assembly

• To prevent the wheel from hydroplaning

What is a lug stud?

• A threaded bolt used for adjusting the wheel alignment

• A special stud pressed through the back of an axle hub or flange to accept the lug nut

• A type of inner race in the wheel bearing assembly

• A steel cup pressed into the hub for wheel rotation

What does the maximum inflation pressure marking on a tire indicate?

• The recommended tire pressure for normal driving

• The lowest pressure the tire can handle

• The highest air pressure the tire can safely hold

• The pressure required for maximum rolling resistance

What is an outer race in a wheel bearing assembly?

• A washer used to protect the spindle-adjusting nut

• A steel cup or cone that serves as the outer surface for wheel bearing rotation

• A fastener that secures the wheel to the axle hub

• A special marking on a tire indicating its load rating

What does the P-metric system designate?

• A tire’s maximum allowable speed

• A system of tire size using metric values and international standards

• A rating for a tire’s ability to resist heat buildup

• A measurement of the tire’s rolling resistance

What is rolling resistance?

• The amount of friction produced as a tire travels over a road surface

• The ability of the tire to resist heat buildup

• A tire’s ability to grip a wet road

• The maximum load a tire can carry