1. Proper tire mounting and inspection procedures can extend usable tire life.

a) true
b) false

2. What is the definition of ‘concentric seating?’

a) tire is mounted counter-clockwise to the wheel using the wheel dimple and tire marking as reference points
b) wheel is centered inside the tire
c) bead will seat itself properly once truck is in motion
d) the force of tire air pressure will push bead tightly against rim
flange

3. What are possible causes for a mounted tire to not have concentricity?

a) damaged, bent, or dirty wheels
b) damaged tires
c) improper lubrication
d) all of the above

4. When inspecting a tire assembly for concentricity, make sure the tire’s
beads are fully seated and that the beads have slid all the way up the ramp
of the rim. The bead seats should press tightly against the rim flange. The
spacing between the edge of the wheel and the molded sidewall rib should
be checked in at least ______ places, evenly spaced around the tire:

a) 3
b) 4
c) 5
d) 6

5. In addition to ride disturbance, what is another consequence of improper
tire mounting?

a) sidewall separation
b) ply separation
c) excessive irregular wear
d) brake heat build-up resulting in tire bead damage

6. What does the acronym CLAC represent?

clean
lube
align
check

7. There are many types of lubricants available, which of the following
should NEVER be used for tire mounting:

a) lubricants with rust inhibitors
b) vegetable based lubricants
c) petroleum based lubricants

8. Why is it important to remove moisture from inside the tire prior to
mounting?

a) movement and settling of moisture inside of the tire will cause ovalization of the tire over a period of time
b) over the life of the tire, the moisture will penetrate theinner liner, attack the steel cords and cause them to rust and be weakened
c) excess moisture interferes with the proper inflation of tires by creating steam
d) the presence of fluids can interfere with the air-pressure capacity of
the tire, lowering its load-carrying capability

9. The tire’s beads are not properly seated when there is a difference in the
distance between the _____________ and the ______________ around
the tire on either side
(Fill in the blanks).

10. Which of the following are appropriate ways to correct a mismounted tire?

a) adjust the bead seating with a blunt probe
b) situation will correct itself when the truck is in motion
c) over-inflate tire approximately 5 to 10% of recommended psi,
allowing beads to reset, then reduce pressure to appropriate psi
d) remount the tire and follow the proper steps to clean and
relubricate the wheel and tire beads, then rotate the tire
180 degrees and reinflate

11. (Bridgestone specific) What does the red mark on the tire sidewall signify?

a) tire appearance imperfection, functionally acceptable
b) high point of that individual tire as determined at the factory
c) low point on tire at time of manufacturing
d) quality check approval

12. What does the dimple signify on steel wheels?

a) point where valve stem should be threaded through
b) low point of wheel at the time of manufacture
c) high point of wheel at time of manufacture
d) nothing - just a result of the manufacturing process

13. Which of the following statements are true?
(more than one answer may apply)

a) if there is a red mark on the tire, it should be aligned with the dimple of the wheel when mounting Bridgestone tires
b) red marks have priority over yellow marks when aligning a Bridgestone tire and wheel
c) when mounting aluminum wheels or steel wheels with no
dimples, use the valve stem as your reference point
d) steel wheels usually have no dimples due to machine process

14. After mounting, further uniformity improvements on the vehicle may be
obtained. On all dual tire applications, clock the adjacent tire and wheel
assemblies so that the valves are:

a) both at 12 o’clock position
b) approximately 180 degrees from each other
c) doesn’t matter where they are set

15. Where do you find the correct cold inflation pressure for each tire size and
application?

a) OSHA tire inflation charts
b) rubber manufacturer’s tire inflation charts
c) on the side of the tire
d) on the tire manufacturer’s tire inflation charts
e) all of the above

16. Incorrect inflation pressure will (check all that apply):

a) adversely affect casing life
b) cause irregular wear on tires
c) cause damage to the wheel if not within 10% recommended psi
d) result in ride disturbance complaints