Questions and Answers
What does PPE stand for?
Personal Protective Equipment
Hearing protection is recommended when you have to raise your voice to talk to someone who is an arm's length away.
True
Eye protection is only required when working with air tools.
False
Approximately 12% of all workplace injuries are slip and fall accidents.
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When lifting a heavy load, it's important to hold your breath.
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Tires with a 16.5-inch bead diameter have a 5-degree bead taper.
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When replacing tires on a vehicle, technicians should ignore the placard when selecting the replacement size.
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Bias ply tires have casing piles that run between the beads at an angle.
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Rotational tires must be installed with the arrows pointing in the direction of the tire's rotation.
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Radial tires must have the word 'radial' molded into the sidewall.
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It is acceptable to rotate tires in any pattern, regardless of vehicle type or the condition of the tires.
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Larger tires can affect speedometer and odometer accuracy.
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On 4WD vehicles, all four tires must be marked with the same size.
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Rim diameter is usually measured in millimeters.
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Wheel lug nuts are the same so they can be interchanged.
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Bolt patterns on 6-lug wheels are measured from the center of one bolt hole to the center of the opposite bolt hole.
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On a wheel with zero offset, the mounting surface of the wheel is on the centerline of the rim.
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Backspace is always measured in inches and reflects the distance from the mounting surface to the back edge of the rim.
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The arrow is pointing to which part of the rim?
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The picture is depicting which type of lug style?
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A brief walk-around inspection should be performed so that any damage can be noted before the vehicle is lifted.
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The maximum rating for the lift represents the total weight that can be lifted on each arm.
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The center of gravity on most vehicles is located half-way between the front and rear bumpers.
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Before attempting to lift a vehicle with a floor jack, the tire opposite the one being lifted must be secured with a wheel chock.
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Cosmetic lug caps will break off when loosened with an impact wrench.
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If the air pressure is 80% of the operating pressure in a tire with all steel construction, then it must be completely deflated before removing the assembly from the vehicle.
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It is acceptable to use a steel hammer to remove a stuck wheel.
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Chrome sockets can be used with impact wrenches, as long as the wrench is set to its lowest setting.
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Store lug nuts together, on the shop floor, and away from the vehicle, so they do not roll under the vehicle during service.
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Torque is the measurement of twisting force and is reflected in foot-pounds or Newton-meters.
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Proper torque ensures that the assembly will stay on the vehicle.
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Lubricant has no effect on fastener torque and clamping force.
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If the mating surfaces are not cleaned prior to installation, then the installation torque will be lower.
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Lug nuts and lug belts do not need to be inspected.
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Sensor position is not important during the tire demounting process.
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When unseating the beads, it is recommended to treat every assembly like it has a TPMS sensor to avoid damaging a valve stem or brand-mounted sensor.
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Rim-clamp tire machines secure the steel wheel from the inside.
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Valve stems do not need to be replaced.
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The beads should be seated with the valve core removed.
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Nail hole repairs in the shoulder require special repair units.
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Cleaning the inner liner before repairing the tire is not important.
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Plugs installed from the outside of the tire are not acceptable.
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Once a speed-rated tire is repaired, the speed rating is no longer valid.
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When stitching a repair unit, technicians should start in the center and work to the outside to eliminate any trapped air.
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It is acceptable to repair bead leaks with inner sealer.
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Study Notes
Personal Protective Equipment (PPE)
- PPE stands for Personal Protective Equipment, essential for workplace safety compliance.
Hearing Protection
- Hearing protection is necessary if voices must be raised at an arm's length to communicate, indicating high noise levels.
Eye Protection
- Eye protection is required not only when using air tools but also in various other hazardous conditions.
Workplace Injuries
- Slip and fall accidents account for approximately 12% of all workplace injuries, highlighting the importance of preventative measures.
Lifting Techniques
- Holding your breath while lifting heavy loads is detrimental; proper breathing techniques should be followed.
Tire Specifications
- Tires with a 16.5-inch bead diameter do not have a 5-degree bead taper; this statement is false.
- Technicians must always consider the placard when selecting tire sizes for replacement.
Tire Types
- Bias ply tires feature casing piles arranged at an angle between the beads, affecting performance characteristics.
- Rotational tires must align arrows with the direction of the tire's rotation during installation.
Tire Markings
- Radial tires must be marked with "radial" on the sidewall to indicate their construction type.
Tire Rotation
- The tire rotation pattern must be appropriate for the vehicle type and tire condition; random rotation is not acceptable.
Tire Sizes
- Larger tires can lead to inaccuracies in speedometers and odometers, affecting vehicle operation.
- For 4WD vehicles, all four tires must be the same size to ensure optimal performance.
Wheel Measurements
- Rim diameters are measured in inches, not millimeters, which is a common misconception.
Lug and Bolt Patterns
- Wheel lug nuts vary and should not be interchanged; using incorrect nuts can compromise safety.
- On 6-lug wheels, bolt patterns are measured from the center of one hole to the center of the opposite hole.
Wheel Offset
- A wheel with zero offset has its mounting surface on the rim's centerline, impacting wheel alignment.
Safety Procedures
- A thorough walk-around inspection should be performed before lifting a vehicle to identify any pre-existing damage.
Vehicle Lifting
- Securing the tire opposite to the one being lifted with a wheel chock is crucial for safety during vehicle lifting.
Impact Tools and Accessories
- Cosmetic lug caps can break if loosened with an impact wrench, indicating the need for careful handling.
- When using air pressure that is 80% of the operating range in a steel tire, the tire must be completely deflated before removal.
Fastener Torque
- Torque represents twisting force, critical for ensuring the integrity of assembled components.
- Proper torque is vital to keep the assembly secured to the vehicle, enhancing safety and performance.
Installation Considerations
- Removing contaminants from mating surfaces before installation ensures the correct installation torque is achieved.
- Lug nuts and lug bolts should regularly be inspected for wear or damage as part of vehicle maintenance.
TPMS and Tire Repair
- Sensor positions must be carefully noted during the tire demounting process to prevent damage to the sensor and valve stem.
- During tire repairs, it’s important to treat each assembly as if it possesses a TPMS sensor.
Tire Repairs
- Tire bead leaks cannot be effectively repaired with inner sealant, which can lead to further issues.
- Cleaning the inner tire liner is essential before conducting repairs to ensure proper adhesion of repair materials.
- Plugs installed from the outside of the tire are deemed unacceptable and could compromise tire safety.
Speed Ratings
- After repairing a speed-rated tire, the speed rating remains valid barring any structural compromises.
- When stitching a repair unit, technicians should work from the center outward to avoid trapping air.
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Description
This quiz covers essential topics related to workplace safety, focusing on Personal Protective Equipment (PPE) and strategies to prevent injuries. It emphasizes the importance of hearing and eye protection, safe lifting techniques, and correct tire specifications. Test your knowledge on these critical safety measures!
