v73d

What is the name of the pressurized air hose attachment that depresses the pin of a tire valve core for inflation?

• Air gauge

• Air chuck

• Valve opener

• Pressure adapter

Which system uses letters and numbers to designate a tire’s dimensions and characteristics?

• Metric system

• Alpha-numeric system

• P-metric system

• Radial system

What does the aspect ratio of a tire represent?

• The diameter of the tire

• The ratio between the tire’s section height and section width

• The width of the tread

• The maximum inflation pressure

Which type of tire has a different tread pattern on its inner and outer edges to optimize performance on dry and wet surfaces?

• A. Directional tire

• B. Run-flat tire

• C. Asymmetric tire

• D. Radial tire

What is the purpose of an axle locknut?

What is a sphere-shaped antifriction element that fits between the inner and outer races of a bearing?

• Roller

• Ball

• Bead

• Hub locknut

What is the term for the steel-reinforced wire ring edges of a tire that engage and secure against the wheel rim?

• Bead

• Belt

• Tread

• Sidewall

Which suspension part holds the wheel bearings, axle stub shaft, and hub in a hub and wheel bearing assembly?

• Bearing support

• Steering knuckle

• Spindle

• Hub locknut

What is the function of a belt in a tire?

• To inflate the tire

• To stiffen the tread and strengthen the body plies

• To act as an antifriction element

• To seal the tire against air leakage

What is the term for the instantaneous rupture and air loss of a vehicle tire?

• Flat

• Blowout

• Hydroplaning

• Tread wear