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WorksheetsDSL-205 W2-D1 Quiz
Total questions: 65
Worksheet time: 33mins
What are the names given to the major components making up the axle wheel end?
Axle, brake pad, and wheel cover
Wheel rims, tires, and hubs
Spokes, tire tube, and lug nuts
Brake disc, tire valve, and wheel spokes
Which of the following is NOT a problem commonly associated with wheel ends?
Premature or uneven tire and brake wear
Brake pull
Seal leaks
Engine overheating
What is the general purpose of a wheel assembly?
To increase the vehicle's weight
To smoothly roll over irregular surfaces to enable vehicle mobility
To reduce the vehicle's weight carrying capacity
To increase sliding friction
What do rolling wheels do in terms of friction and weight carrying capacity?
Increase sliding friction and reduce weight carrying capacity
Reduce sliding friction and reduce weight carrying capacity
Increase sliding friction and increase weight carrying capacity
Reduce sliding friction and increase weight carrying capacity
What function do wheels have related to steering a vehicle?
They transfer the rolling vehicle weight from the tires to the hubs to steer a vehicle
They increase the vehicle's speed for better steering
They solely provide the force needed to steer without transferring weight
They have no role in steering a vehicle
What does the combined stress from the force of driving torque and vehicle weight signify for a wheel used in a non-driving position?
It means increased friction and reduced mobility
It means the same wheel can be used in both driving and non-driving positions without any difference
It means the wheel is not suitable for use in a vehicle
It means the same wheel used in a non-driving position
Which of the following is NOT a factor determining the design, construction, and selection of wheels?
Loading rate
Color of wheel
Position of wheel
Tire size
What is considered when selecting a wheel for a specific application?
Tire type
The brand of the wheel
The price of the wheel
The color of the vehicle
Which factor is important for the maintenance and standards of wheels?
Wheel system
Type of braking system
Maintenance and standards
Applications
What are the two basic types of wheels used by medium- and heavy-duty (HD) buses and trucks?
Alloy wheels and steel wheels
Open center or demountable rim and disc wheels
Radial and bias-ply wheels
Tubeless and tubed wheels
What is another name for an open center rim?
A solid rim
A demountable rim
A disc wheel
A cast wheel
What does an open center rim consist of?
A rubber tire band
A plastic rim band
A metal rim band
A composite rim band
With what are open center rims exclusively used?
Alloy spoke hubs
Cast spoke hubs
Steel spoke hubs
Carbon spoke hubs
What components together form the commercial vehicle wheel according to the learning material?
Rim, tire, and hubcap
Rim, wedged and clamped over a cast spoke hub
Rim, lug nuts, and tire
Rim, axle, and brake drum
Which of the following is a feature of a three-piece rim according to the learning material?
It uses a continuous side ring and a split lock ring
It has a single-piece design with a fixed flange
It includes a bead seat and a gutter
It is equipped with a cap nut and a clamp
What does "Dayton" refer to in the context of commercial vehicle wheels?
A type of tire used on commercial vehicles
A specific design of wheel rim
An early manufacturer of cast spoke hubs
A wheel balancing technique
What are the two main components of a disc wheel design?
Hub and spokes
Rim and tire
Rim and disc
Disc and axle
What is the purpose of the center bore in a disc-type wheel for commercial vehicles?
To reduce the weight of the wheel
To allow the wheel to pass over a hub to help center the wheel
To increase the wheel's traction on the road
To attach the wheel to the vehicle's suspension system
How are disc-type wheels typically attached to the hub of a commercial vehicle?
With adhesive materials
By welding the wheel to the hub
With bolts and screws
Using studs and nuts
What type of wheels have almost completely displaced open center rims in commercial vehicles?
Spoke wheels
Alloy wheels
Disc wheels
Wire wheels
Why must split or multipiece open center rims be properly serviced?
To improve vehicle aesthetics
To prevent explosive separation of rings and rims, causing severe physical injury and death
To enhance fuel efficiency
To reduce the weight of the vehicle
How is a wheel's load capacity measured?
In meters or feet
In kilograms (kg) or pounds (lb)
In liters or gallons
In newtons or joules
Where is the wheel's critical capacity usually indicated?
In the vehicle's manual
On the tire's sidewall
Stamped on the wheel
On the vehicle's dashboard
What is the most common diameter for HD commercial vehicle wheels?
20 inches
22.5 inches
24 inches
18 inches
What does rim width refer to?
The distance across the rim flanges at the bead seat
The distance between the tire sidewalls
The diameter of the rim
The distance between the bolt holes
What is the purpose of the rim flange?
To create a seal between the tire bead and the wheel.
To arrange the bolt holes around the circumference.
To identify the bolt circle by its diameter.
To hold the tire in place.
What is the most commonly used bolt circle diameter for 10 bolts on HD vehicles in European vehicles?
335 mm
300 mm
350 mm
400 mm
What does the center bore of a wheel refer to?
The size of the tire
The size of the hole in the wheel disc that centers the wheel over the mounting hub
The diameter of the wheel itself
The pattern of the bolt arrangement
Are the standard wheel dimensions for the center bore and bolt circle the same between European and North American wheels?
Yes, they are the same
No, they are different
Yes, but only for the bolt circle
No, but only for the center bore
What do stud and hub piloted wheels have in common?
Different bolt circle patterns
Different center-bore diameters
The same bolt circle pattern and different center-bore diameters
The same bolt circle pattern and center-bore diameter
What is the effect of the wheel offset?
It has no effect on the wheel position
It places the wheel weight nearer to the outboard end of the axle stub and outer wheel bearing or closer to the inner wheel bearing
It only affects the wheel's visual appearance
It reduces the load carrying capacity of the wheel
What does the wheel offset influence in terms of wheel dimensions?
The bolt circle pattern
The scrub radius and where the wheel bearing load is
The center-bore diameter
The wheel size
What is wheel offset?
The diameter of the wheel
The horizontal distance from the wheel disc surface to the hub
The horizontal distance from the wheel disc surface where it attaches to a hub, to the true vertical centerline of the wheel
The vertical distance from the ground to the centerline of the wheel
What happens to the overall width of the front axle and wheels together when wheels with positive offset are used?
It becomes wider
It remains the same
It becomes shorter
It is not affected by the wheel offset
Which of the following statements is true regarding wheel offset?
Offset can only be positive
Offset can only be negative
Offset can only be zero
Offset can be positive, negative, or zero
Why is additional offset required in wheels with drum and disc brakes?
To reduce the weight of the wheel
To allow for larger tire sizes
To create space for brakes and ADB assemblies
To improve fuel efficiency
What is the purpose of using positive offset on the front wheels?
To distribute the vehicle load evenly across both wheels
To create space for brakes and place the vehicle load closer to the larger inner wheel bearing
To increase the track width of the vehicle
To enhance the aesthetic appeal of the vehicle
How do dual wheels use offset?
Only positive offset is used
Only negative offset is used
Both positive and negative offset are used
No offset is used
What does the term "minimum dual spacing" or "dual spacing" refer to in wheel classification?
The maximum distance between the outer edges of dual tires
The minimum allowable distance between the wheel centerlines in a dual-wheel arrangement
The distance between the rim and the vehicle body
The width of a single tire section
Why is minimum dual spacing necessary in a dual-wheel arrangement?
To increase the overall width of the vehicle
To provide space for additional suspension components
To prevent dual tires from contacting one another under load
To allow for larger tire sizes to be installed
What are the two types of disc wheels used on commercial vehicles?
Rim piloted and Hub piloted
Hub piloted and Stud piloted
Axle piloted and Rim piloted
Stud piloted and Wheel piloted
How is a hub piloted wheel centered on the hub?
Using lug nuts that align with the wheel studs
The wheel is bolted directly onto the hub without any alignment
The wheel slides over precision-machined pilot pads on the hub
It uses a special adhesive to keep the wheel centered
What is the purpose of the pilot pads on a hub piloted wheel?
To reduce the weight of the wheel
To transfer wheel loads to the hub through the pads
To lock the wheel onto the hub
To absorb shocks and vibrations from the road
How many splined studs are used in hub piloted wheels?
Six or eight
Eight or ten
Ten or twelve
Twelve or fourteen
What type of nut is used for each stud or bolt hole in hub piloted wheels?
A single, one-piece nut
A single, two-piece nut
A double, one-piece nut
A double, two-piece nut
What is a wheel called when studs are used to center it?
Hub piloted wheel
Stud piloted wheel
Spline piloted wheel
Nut piloted wheel
What is used to secure the inner dual wheel in a stud piloted wheel mounting system?
Outer cap nuts
Inner cap nuts
Chamfered holes
Spline
What type of seat do the nuts use in a stud piloted wheel mounting system?
Cone seat
Ball seat
Flat seat
Ring seat
What detail is present on the wheel disc in a stud piloted wheel mounting system?
Spline
Chamfered holes
Ball seat
Cone seat
What kind of threads do nuts and studs have in a typical cross section of a stud piloted wheel mounting system?
Only right-hand threads
Only left-hand threads
Both right and left-hand threads
No threads
What shape must the wheel bolt holes be to fit the cone-shaped nut?
Square
Straight
Cone-shaped
Round
What type of mounting system uses tapered holes for ball-type studs and nuts?
Lug centric mounting system
Hub centric mounting system
Stud piloted mounting system
Rim piloted mounting system
What is used to retain the inner wheel on dual wheel axle ends in the described mounting system?
Lug nuts
Cap nuts with square heads
Flange nuts
Locking wheel nuts
How many ball nuts are required to hold a dual-wheel assembly together?
10
20
30
40
Can the hardware used to retain hub piloted and stud piloted wheels be interchanged?
Yes, they can be interchanged freely.
Yes, but only in certain conditions.
No, they should never be interchanged.
No, unless modified by a professional.
What is the function of the inner nut in a dual-wheel assembly?
It has external threads to tighten onto the wheel stud fastened to the hub.
It is used to lock the outer ball nut in place.
It is threaded onto the outer ball nut.
It has internal threads and external threads to tighten it onto the wheel stud fastened to the hub.
What happens to the outer ball nut when dual wheels are used?
It is removed from the assembly.
It is threaded onto the inner nut.
It is used to fasten the wheel to the vehicle directly.
It is replaced with a different type of nut.
What is the purpose of using a nut on wheel studs in hub piloted wheels?
To balance the wheel
To provide the clamping force necessary to hold the wheel against the hub
To lubricate the wheel stud
To reduce the weight of the wheel
What is the material used to make wheel studs for hub piloted wheels?
Plastic
Aluminum
Heat-treated, high-grade alloy forged steel
Cast iron
What is the benefit of softening the thread on wheel studs?
It increases the weight of the studs
It enhances the visual appeal of the studs
It minimizes the likelihood of stripping the threads
It makes the studs easier to paint
What is "clocking" in the context of hub piloted wheels?
The process of tightening wheel nuts in a specific sequence
The first condition that leads to nut loosening
A method of balancing the wheels
The alignment of wheels to the axle
What does the relative back and forth movement between the hub and wheel cause?
Increased friction and heat generation
Incremental rotation of the outside edge of wheel nuts
Improved wheel stability
Enhanced wheel grip on the road
What can happen as a result of the gap between the wheel stud and wheel allowing incremental back and forth movement?
The wheel nuts can become tighter
The wheel can become more aligned with the hub
The wheel nuts can potentially loosen
The hub can become more lubricated
What is the primary cause of nut loosening due to clocking on hub piloted wheels?
Regular maintenance
Over-tightening of wheel nuts
Accelerating and decelerating the wheel during driving and braking torque
Poor wheel alignment
How can one visually identify nut loosening due to clocking on hub piloted wheels?
By measuring the torque applied to the wheel nuts
By using wheel nut indicators
By checking the tire pressure
By inspecting the wheel bearings
