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WorksheetsAuto Tech Chapter 27
Total questions: 78
Worksheet time: 41mins
A plain steel wheel that is typically covered by a hubcap.
Bar
Casing plies
Drop center
EH2 rim
Steel-disc-type rim
A condition in which the plane of the hub mounting surface is positioned toward the brake side or back of the wheel centerline.
Negative offset
Casing plies
Drop center
EH2 rim
Steel-disc-type rim
A rubber or steel piece that attaches the tire valve to the rim.
Valve stem
Casing plies
Drop center
EH2 rim
Steel-disc-type rim
A one-way valve used in a valve stem.
Schrader valve
Casing plies
Drop center
EH2 rim
Steel-disc-type rim
A standardized grading system that indicates how well a tire will maintain contact with the road surface when wet.
Traction grade
Casing plies
Drop center
EH2 rim
Steel-disc-type rim
A rating system that denotes the number of belt layers or plies that make up the tire carcass. In radial ties, ply rating denotes the relative strength of the plies, not the actual number of plies
Traction grade
Casing plies
Drop center
EH2 rim
Ply rating
The part of the wheel containing the holes for the lug studs.
Wheel center
Casing plies
Drop center
EH2 rim
Ply rating
The specialized rim design that is used with some run-flat tires.
Wheel center
Casing plies
Drop center
EH2 rim
Ply rating
The number imprinted on the sidewall of a tire by the manufacturer as required by the National Highway Traffic Safety Administration that indicates the tire's tread life.
Wheel center
Casing plies
Drop center
Tread wear grade
Ply rating
A condition in which both the front and the rear tires of a vehicle are experiencing the same slip angle.
Wheel center
Casing plies
Drop center
Neutral steer.
Ply rating
A condition in which the plane of the hub mounting surface is even with the centerline of the wheel.
Zero offset
Casing plies
Drop center
Neutral steer.
Ply rating
The pressure on the wheel that pushes it toward the outside or inside of the rim as the vehicle makes a turn.
Zero offset
Casing plies
Drop center
Side force
Ply rating
A wheel design with part of the center section of the wheel a smaller diameter than the rest It is used for mounting and demounting the tire.
Zero offset
Casing plies
Drop center
Side force
Ply rating
A tire's sideways distortion that makes the vehicle follow a path at an angle to the direction the road wheel is pointing.
Zero offset
Casing plies
Drop center
Slip Angle
Ply rating
The threaded fasteners that attach the wheel to the vehicle
Wheel studs
Casing plies
Drop center
Slip Angle
Ply rating
A metric unit of measure for pressure.
Wheel studs
Bar
Drop center
Slip Angle
Ply rating
A type of lug nut with a tapered end toward the rim that helps center the wheel on the wheel studs.
Wheel studs
Bar
Tapered seat
Slip Angle
Ply rating
The network of cords that give the tire shape and strength
Wheel studs
Casing plies
Tapered seat
Slip Angle
Ply rating
The one-way spring-loaded valve that screws into the valve stem that allows air to be pumped into a tire and prevents it from flowing out.
Wheel studs
Casing plies
Valve core
Slip Angle
Ply rating
The outside edge of the wheel that helps keep the tire from popping off the wheel.
Rim flange
Casing plies
Valve core
Slip Angle
Ply rating
The force that acts between the tread and the road surface is called____________.
Side force
Road force
Cornering force
Slip angle
Ply rating
When the front slip angles are larger than the rear slip angles, the vehicle is said to be in a(n) ___________
understeer
oversteer
neutral steer
lateral steer
The distance across the rim flanges at the bead seat is called the __________.
drop center
flange width
contact area
rim width
What type of rim is designed to hold the tire bead in place on the rim in the event of inadequate tire pressure?
split rims
drop well rims
safety rims
steel-disc type
All of the following are standard types of wheel retaining studs or nuts, except:
tapered seat
tapered seat with washer
flat seat without washer
flat seat with washer
When the plane of the hum mounting surface is shifted from the centerline toward the outside or front side of the wheel it has a _________.
positive offset
negative offset
positive caster
negative camber
The measure of the innate strength of a material is called _________.
ply rating
tensile strength
flexibility
elasticity
The first two letters following the letters "DOT" on a tire identify the ______
tire manufacturer
tire's size
manufacturing plant
both A and C
The standardized system designed to provide tire buyers with a comparative measure of a tire's tread life traction, and temperature characteristics, is known as the _________.
Uniform Tire Quality Grading System
Department of Transportation Compliance code
International Organization for Standardization Tire Class
Manufacturer's load index
If a tire has a four-digit Department of Transportation code, when was it manufactured?
1970's
1980's
1990's
after 2000
What type of monitoring system utilizes the wheel speed anti-lock braking system to measure the difference in the rotational speed of the four wheels?
Direct TPMS
Centrifugal TPMS
Indirect TPMS
Automatic TPMS
What type of tires are designed to get the driver to a service center in order to have the regular tire fixed or purchase a new one?
Space-saver
Self-sealing
Run-flat
Zero-pressure
The amount of air pressure in the tire that provides it with load-carrying capacity and affects the overall performance of the vehicle is called the ______.
maximum inflation pressure
pressure index
tire inflation pressure
iso pressure
What type of rotation pattern should you use for a four-tire rotation with nondirectional tires?
Forward-cross
Rearward-cross
X pattern
Any of the above
What type of balancing does not take into consideration that the tire has width
Dynamic
Road force
Static
Horizontal
During cornering, centrifugal force puts more weight on the outside wheels
true
false
The bead seat is the edge of the rim that creates a seal between the tire bead and the wheel.
true
false
Vehicles manufactured in the mid-70s through the 80s were typically built with positive offset wheels.
true
false
Most lug nuts and studs are left-hand threaded, which means the tighten when turned clockwise.
true
false
Pick-up trucks and large SUVs can have as many as 6,8, 10 studs
true
false
The primary function of the Schrader valve is to assist in keeping debris out of the valve stem.
true
false
Bias-ply tires have much more flexible sidewalls because they use two or more layers of casing plies.
true
false
A properly inflated radial tire runs cooler than a comparable bias-ply tire
true
false
A symmetric tread patterns are designed in such a way that the tire can be mounted on the wheel for any direction of rotation
true
false
Radial tires are marked with the section width in millimeters, but with the rim diameter in inches.
true
false
The lower a tire's aspect ratio, the wider the tire is in relation to its height.
true
false
The DOT tire date manufacturing code is a six digit code.
true
false
It is illegal to sell a tire intended for use on a public road within the United States without a DOT stamp.
true
false
The use of centrifugal switch in the indirect TPMS sensor allows the sensor to go to sleep when the vehicle stops.
true
false
Self-sealing tires feature standard tire construction with the addition of a flexible and malleable lining inside the tire in the tread area.
true
false
The proper tire pressure for the vehicle is referred to as the recommended cold inflation pressure.
true
false
Nitrogen-filled tires can be identified by the green valve stem caps that are placed on the valve stem when the tire is inflated
true
false
Directional tires require keeping the tires on the same side of the vehicle during rotation and generally use a front-to-rear pattern.
true
false
Dynamic imbalance tends to cause the tire to move purely up and down.
true
false
A tire pressure gauge measures pressures in pounds per square inch (psi), kilopascals (kpa), or bars
true
false
_________ is when the rear slip angle is larger than the front slip angle; it is referred to as the vehicle being "loose" in the corners.
oversteer
rim
deep dish
studs, lug
offset
The ______ of a wheel is the outer circular lip of the metal on which the inside edge of the tire is mounted.
oversteer
rim
deep dish
studs, lug
offset
In _________ wheels, the drop center is closer to the rear of the wheel.
oversteer
rim
deep dish
studs, lug
offset
Wheels are fastened to the rims by wheel ______ and ________ nuts
oversteer
rim
deep dish
studs, lug
offset
The _________ of a wheel is the distance from its hub mounting surface to the centerline of the wheel.
oversteer
rim
deep dish
studs, lug
offset
After the wheel assembly has been fitted, the wheel retaining, nuts that hold the wheel onto the vehicle are _________ to the manufacturer's specifications
torqued
bolt pattern
tire valve
bias-ply
tread patterns
The ___________ refers to the number and spacing of the lug nuts or wheel studs on the wheel hub on the wheel rim.
torqued
bolt pattern
tire valve
bias-ply
tread patterns
A (n) _________________ is a specially designed opening that allows a tire to be inflated and then automatically closes to prevent air from escaping.
torqued
bolt pattern
tire valve
bias-ply
tread patterns
A (n) _________________ -_________ tire is the older form of the tire and is still in use on some trailers and off-road vehicles, primarily because of a slightly lower cost and their more durable construction.
torqued
bolt pattern
tire valve
bias-ply
tread patterns
Directional ______ _________ are designed to provide a range of attributes during particular driving conditions.
torqued
bolt pattern
tire valve
bias-ply
tread patterns
________ tread patterns have the same tread pattern on both sides of the tire and are usually non directional tires.
Symmetric
Temperature grade
U
Aspect ratio
Department of Transportation
________ ________ is a respresentation of tire's ability to resist and dissipate heat.
Symmetric
Temperature grade
U
Aspect ratio
Department of Transportation
Tires with a speed rating designation of ___________ may be driven up to 124 mph (200 kph).
Symmetric
Temperature grade
U
Aspect ratio
Department of Transportation
The ___________ __________ of a tire is the ratio of its height to its width. It is usually given as a percentage.
Symmetric
Temperature grade
U
Aspect ratio
Department of Transportation
As part of the US __________ ___________ regulations, there must be a tire manufacture date code stamped on the sidewall of every tire.
Symmetric
Temperature grade
U
Aspect ratio
Department of Transportation
A (n) _____________ system monitors the tires for low air pressure and alerts the driver when one or more tires are lower than ( or in some cases, higher than) the designated thresholds.
tire pressure monitoring
run-flat
tread depth
nitrogen
dynamic
The major safety benefit of _______________ technology is that it enables a driver to maintain vehicle control if a tire sufferers a rapid pressure loss when in motion.
tire pressure monitoring
run-flat
tread depth
nitrogen
dynamic
The ____________ is inspected to ensure that it is above the built-in wear indicators, which indicate that the tire is at the end of its legal life and should be replaced.
tire pressure monitoring
run-flat
tread depth
nitrogen
dynamic
Filling the tires with ______________ will increase the vehicle the vehicle's fuel efficiency and tire life by reducing the effects of pressure loss due to permeation.
tire pressure monitoring
run-flat
tread depth
nitrogen
dynamic
_______________ balancing is performed by placing specific amounts of weight on each side of the rim to provide the exact counterbalance needed.
tire pressure monitoring
run-flat
tread depth
nitrogen
dynamic
