Tire Problems Flashcards
a phenomenon caused by a wedge of water building up under the tread of the tire and breaking its contact with the ground
aquaplanning or hydroplanning
Aquaplanning speed is measured in units of
nautical miles per hr, knots
the speed at which the tire loses contact with the ground
aquaplanning speed
The possibility of aquaplanning ______ as the depth of the tread is reduced.
increases
When aquaplanning, neither _______ nor _______ will be effective.
nosewheel steering, braking
If the brakes are applied during aquaplanning, the heat generated between the tire and the water may be sufficient to _____ the tread of the tire.
melt
Cuts in the tire penetrating the chords render the tire _________.
unserviceable
The ____ will be recognizable as pieces of white fibrous material embedded in the rubber of the tire.
cords
Whether the tire can be repaired or must be renewed is governed by the ___________.
depth of the cut
_______ may indicate a partial failure of the casing.
bulges
If the casing has failed, the tire must be ______.
replaced
When can we say that the casing of a tire has failed?
fabric is fractured
Repair or renewal of the tire is governed by the __________.
extent of the damage
Any ______ on the tire tread must be examined with great care to determine if the fabric of the tire has been weakened unduly.
flat spots
Some tires have these in the center groove to be used as a wear indicator.
marker tie bars
Patterned tread covers worn to the base of the marker grooves or to the marker tie bars ________.
must not be used
For special high-speed applications, some tires have a layer of fabric woven into the tread which are ___________.
reinforced tread
Reinforced tread may become visible during ______.
normal wear
What speed is recommended during taxi run to minimize tire wear?
no more than 25 mph or 40kph
Creep is less of a problem with tubeless tires as long as the _____ is undamaged, and any pressure drop is within limits.
tire bead
Creep is less likely to occur if the _________ is correctly maintained.
tire gas pressure
What do you call two white lines painted one on the wheel and a matching one on the tire that detects creep?
creep marks