Automotive Tire Maintenance and Inspection

What is the condition of tire when wearing is at the center of the tire?

• Correct inflation

• No Inflation

• Over inflation

• Under inflation

If wearing out of tire is at the shoulder and NOT at the center, what is the condition of the tire?

• Correct inflation

• No inflation

• Over inflation

• Under inflation

Aside from the car owner's manual, where can we find the standard size & standard tire air-pressure of the vehicle?

• Under the hood ( engine bay)

• Engine block

• Car Door panel or sill

• Registration

What is the correct tire air-pressure of a certain vehicle?

• 30 PSI

• 40 PSI

• 50 PSI

• Depending on the car owner's manual

Sir Joseph's car tire size is 160/65/R14. What does 160 mean?

• The width of the tire is 160 mm

• The wall is 160 mm

• The inside diameter is 160 mm

• The outside diameter is 160 mm

The code for the manufacturing date of Sir Joseph's car is 1019. What does is mean?

• The tire is manufactured sometime in Octorber 2019

• The tire is manufactured sometime in January 2019

• The tire is manufactured in the 10th week of 2019

• It does NOT mean anything for tire users

When should we replace the tire of the vehicle?

• The most is every 5 years (from the manufacturing date)

• When the thread is less than 0.8mm (for light vehicles)

• When there are side cracks, bulging, and other disturbing wear

• All of the above