AUT-104 final exam

The ________ is a rotating gear that meshes with the rack.

• Side gear

• Front gear

• Ring gear

• Pinion gear

Today’s newer, lightweight vehicles are less sensitive than ever to minor tire or wheel issues.

• True

• False

Tires on many vehicles are inflated to about ________ pounds per square inch (psi).

• 16

• 24

• 32

• 40

Which of the following speed rating designations is rated for speeds above 149 mph (240 kph)?

• V

• Z

• Y

• W

The Ackermann principle is:

• when the steering wheel automatically returns to center

• where the inside wheels are able to turn at a different radius than the outside wheels

• the offset of the front wheels

• the difference in the ride height from front to rear

All of the following problems or conditions may be caused by improper wheel balance, EXCEPT:

• uncomfortable vibration

• uneven tire wear

• premature wear of brake pads

• premature wear of suspension components

If the TPMS warning light indicates a system fault, connect an appropriate scan tool to the system and read any ________.

• ECRs

• MILs

• DTCs

• EGRs

Wheel and tire assembly runout is a condition defined by all of the following, EXCEPT:

• side-to-side variation

• up-and-down variation

• felt as a vibration, worsening with vehicle speed

• felt as a vibration, worsening with engine speed

The height of the center of gravity is determined by the ______ of the center of the mass above the road surface.

• Height

• Depth

• Width

• Length

• Feedback

Tech A says that using a tire plug to repair a hole in a tire is the best and fastest way to fix a tire. Tech B says that using a tire plug patch is the only approved method of repairing a tire in many states. Who is correct?

• Tech A

• Tech B

• Both A and B

• Neither A nor B