Question 1

When installing a tire pressure monitoring system sensor on a wheel, the sensor should be mounted ________.

Accepted Answer

The correct installation of a tire pressure monitoring system sensor involves positioning the flat part of the sensor so that it is parallel to and facing the center section of the rim. This ensures proper alignment and functionality of the sensor.

Question 2

What is the term used to describe mounting a tire with the valve stem lined up with the dot painted on the tire?

Accepted Answer

Match mounting is the correct term used to describe the process of aligning the tire's painted dot (which usually indicates the tire's lightest point) with the valve stem on the wheel (often the heaviest point) to ensure optimal balance.

Question 3

Technician A says that it is recommended that the vehicle be driven less than 50 mph for the first 50 miles to allow the tire to adhere to the wheel. Technician B says that sudden hard acceleration with newly mounted tires can cause the tire to change position on the wheel. Which technician is correct?

Accepted Answer

Both technicians are correct. Technician A is correct because it is recommended that the vehicle be driven less than 50 mph for the first 50 miles to allow the tire to adhere to the wheel. Technician B is correct because sudden hard acceleration with newly mounted tires can cause the tire to change position on the wheel.

Question 4

Technician A says that most manufacturers recommend using anti-seize compound on lug studs when installing wheels. Technician B says that air impact wrenches are the best tool to tighten lug nuts. Which technician is correct?

Accepted Answer

Most manufacturers do not recommend using anti-seize compound on lug studs because it can lead to over-torquing. Air impact wrenches, while commonly used, can easily over-torque lug nuts, leading to potential wheel damage or uneven tire wear. The best practice is to use a torque wrench to ensure lug nuts are tightened to the manufacturer's specifications.

Question 5

What is the proper tightening sequence for lug nuts?

Accepted Answer

The star (criss-cross) pattern ensures even distribution of pressure on the wheel, preventing warping and ensuring the wheel is centered properly.

Question 6

Anytime a set of aluminum wheels is installed, the lug nuts should be re-torqued after how many miles?

Accepted Answer

Aluminum wheels should have their lug nuts re-torqued after 25 miles to ensure they are properly seated and secure.

Question 7

Compressed nitrogen is sometimes used for tire inflation because it holds less moisture than compressed air.

Accepted Answer

Compressed nitrogen is less likely to contain moisture than compressed air because the compression process for nitrogen typically includes removing water vapor, which can reduce the potential for moisture inside tires. This is beneficial for maintaining consistent tire pressure and reducing corrosion inside the wheel.

Question 8

When using a torque limiting adapter with an air impact wrench, what is the suggested maximum air pressure for the air tool?

Accepted Answer

The answer of When using a torque limiting adapter with...

Question 9

Which is the preferred method for tire rotation?

Accepted Answer

The answer of Which is the preferred method for tire...

Question 10

In the tool setup shown here, the technician is preparing to measure ________.

Accepted Answer

The answer of In the tool setup shown here, the...

Quiz 111: Tire and Wheel Service