Junior Weekly Quiz 4/29/2022

Which of the following is a cause of chassis vibration?

• Out-of-Balance wheel assemblies

• Camber our-of-specs

• Toe out-of-specs

• All of the above

When dismounting a tire it is important to use care not damage all of the following EXCEPT:

• Tire pressure sensor

• Tire pressure monitor module

• Tire bead

• Rim

Wear Bars appear when the tread is down to what depth?

• 1/32 inch

• 1/16 inch

• 1/8 inch

• 1/4 inch

Technician A says that if a cracked wheel is made of steel, it can be welded and reused. Technician B says that if a tire has torn beads, it can be reused with bead sealer. Who is correct?

• Technician A only

• Technician B only

• Both Technician A and B

• Neither Technician A nor B

Tread punctures up to 1/4 inch can be repaired. What is the maximum puncture size that can be repaired in a sidewall?

• 1/8 inch

• 1/4 inch

• 3/16 inch

• Sidewall punctures can’t be repaired

Technician A says that leaf-type rear suspensions are subject to wheel tramp. Technician B says that an anti-sway bar is designed to limit wheel tramp. Which technician is correct?

• Technician A

• Technician B

• Both technicians

• Neither technician

The modified MacPherson strut rear suspension is very common in

• Front-wheel drive cars

• Rear-wheel drive cars

• Pickup trucks

• Station wagons

Extreme tire wear on the inside edge of the tire tread indicates excessive

• positive caster

• negative caster

• positive camber

• negative camber

In road testing a vehicle, the steering wheel shakes from side to side at higher speeds. Technician A says that the front wheels not statically balanced could cause this. Technician B says that front wheels not dynamically balanced could cause this. Which Technician is correct?

• Technician A

• Technician B

• Both Technicians

• Neither Technician

Excessive positive camber will cause tire wear around

• both inner and outer edges

• the center

• the inner edge

• the outer edge