On rock service treads, what is the
primary purpose of the narrow voids
between the lugs?
Provides traction on slippery
Provides flexibility on rocky
Prevents loose rocks from being
caught in the lugs
Prevents the lugs from filling
with mud when working in muddy
the principles and procedures
of tire removal and repair.
When you raise a vehicle with
a jack, always block the wheels
on the axle that is being raised
with the jack.
When breaking down a tire, you
should perform which of the
following steps first?
Force the tire bead away
from the removable side ring
Inflate the tire to find
Plug the hole in the tire
Remove the valve core and
deflate the tire completely
When assembling tires equipped with
a removable side ring, you should
install the valve stem so that it
points towards the removable side
When assembling a tire equipped
with a lock ring that does NOT seat
properly, you should inflate the
tire with how many pounds of air
pressure before tapping the lock
ring with a mallet?
5 to 10 pounds
15 to 20 pounds
25 to 30 pounds
35 to 40 pounds
When physically inspecting the
inside of a tubeless tire, you
should use a rag to protect your
hand from injury.
When plugging a tire, you should
cut the plug at approximately what
distance from the surface?
On a tube to be patched, you should
buff or roughen the surface at
least how many inches around the
hole to be patched?
1 1/2 inch
Tire rotation is performed
according to the manufacturers
Which of the following personnel
supervise the tire shop?
Heavy shop supervisor