WorksheetsWheel bearing quiz
Total questions: 20
Worksheet time: 10mins
What is the primary purpose of a wheel bearing in a vehicle?
Reduce friction for smooth wheel rotation
Provide threaded mounting for lug nuts
Convert engine torque to wheel speed
Absorb shocks from road irregularities
Where are wheel bearings typically located on a vehicle?
Within the wheel hub or brake hub area
Inside the tire sidewall near tread
Along the axle shaft inside differential
Behind the brake pedal under dashboard
Which statement best describes tapered roller bearings?
Common in rear-drive hubs handling axial and radial loads
Used only in front-wheel-drive sealed assemblies
Designed mainly for light radial loads only
Pre-assembled units that cannot be serviced
What is the main function of wheel studs?
Provide safe wheel retention with lug nuts
Transfer braking force to the caliper pistons
Reduce tire wear by improving alignment
Seal the hub to prevent grease leakage
A vehicle returns with excess tire wear and humming from the front wheel. Which component issue is most likely?
Worn wheel bearing affecting alignment
Soft brake pads glazing the rotor
Underinflated tires causing cupping
Loose tie-rod ends causing wobble
Which material property best explains why wheel studs are usually made from high-strength steel?
Durability and resistance to high loads
Lightweight properties for fuel economy
Superior corrosion resistance to aluminum
Low cost compared to mild plastics
Which sign most directly indicates a worn wheel bearing during a spin test?
Grinding or humming noise while spinning
Slight brake dust on the wheel face
Tire tread feathering on outer edge
Minor surface rust on brake rotor
When checking wheel bearing play, how should the tire be grasped and moved?
At 12 and 6 o’clock, rock the wheel
At 3 and 9 o’clock, push inward
At valve stem, rotate clockwise only
At top only, pull outward hard
Which condition requires immediate wheel stud replacement to prevent wheel-off incidents?
Cracks or stretched threads present
Light surface rust only
Threads slightly oily from lube
Lug nut cap missing only
What is the proper approach for a sealed hub unit bearing that has failed?
Replace the entire hub assembly unit
Disassemble and repack with grease
Remove rollers and clean thoroughly
Swap only the outer bearing race
Which sequence best describes the serviceable wheel bearing replacement?
Remove hub, clean, inspect, repack, reinstall new seal
Loosen lug nuts, replace tire, retorque after driving
Jack vehicle, spin wheel, listen, lower vehicle
Pull caliper, sand pads, bleed brakes twice
Which action should be done first when starting lug nuts to prevent cross-threading?
Use a torque wrench at final specification immediately
Start with an impact gun on low power setting
Hand-thread each lug nut several turns first
Apply thread locker to every stud before turning
A vehicle returns after service with pulsation and a fractured wheel stud. Which mistake most likely caused these issues?
Lug nuts were torqued evenly in a star pattern
Lug nuts were over-torqued with an impact gun
New cotter pins and seals were installed
Bearings were replaced on both sides together
When replacing a noisy front wheel bearing on one side, what is the best practice to promote even wear and reliability?
Replace only the noisy bearing to save parts cost
Replace bearings in pairs on both sides of the axle
Repack the old bearing and reuse the original seal
Tighten the lug nuts in any circular order for speed
Which statement best defines a wheel bearing?
Device that allows free wheel rotation while supporting weight
Bolt that secures the wheel to the hub with nut
Flat portion of hub where the wheel mounts
Manufacturer-recommended tightness for fasteners
What is a hub assembly in modern vehicles?
Sealed unit containing bearings, hub, sometimes ABS sensor
Open housing that holds only the outer bearing race
Set of lug nuts used to clamp the wheel to studs
Adjustable spacer used to set bearing preload
Which bearing type is designed to handle both radial and axial loads?
Tapered roller bearing used commonly in RWD
Ball bearing commonly used in FWD systems
Needle bearing used in transmission shafts
Thrust washer used for endplay control
Which option correctly distinguishes axial load from radial load?
Axial is parallel to rotation axis; radial is perpendicular
Axial is perpendicular to rotation axis; radial is parallel
Axial acts only on bearings with balls; radial does not
Axial occurs at low speed only; radial at high speed
During a road test, which symptom most strongly indicates a failing wheel bearing?
Grinding that changes with speed and steering
Soft brake pedal after repeated stops
Clicking only during tight low‑speed turns
Steering wheel off‑center on straight roads
When reassembling a serviceable wheel bearing, which components should routinely be replaced to ensure reliability?
Grease seal and cotter pin with fresh grease
Rotor and caliper with new brake pads
Hub flange and ABS tone ring together
Lug nuts and wheel studs every service
