1. Your vehicle is held up by:

a) the tires
b) air in the tires
c) vehicle suspension system

2. Tires are designed to:

3. When a vehicle is let down off a jack changing the shape of the tire, the volume of air in the tire:

a) increases
b) decreases
c) remains the same

4. In the above situation, the inflation pressure of the tire:

a) increases
b) decreases
c) remains the same

5. At 55 mph a passenger car tire turns approximately:

a) 225
b) 450
c) 600
d) 800

revolutions per minute

6. At 55mph a truck tire turns approximately:

a) 225
b) 450
c) 600
d) 800

revolutions per minute

7. When a tire is under inflated for the load being carried, the amount of sidewall flexing:

a) increases
b) decreases
c) doesn't change

8. A tire with too much air pressure has a soft sloppy road feel and a tendency to skid in turns. On the other hand, a tire with too little air pressure provides a rough ride, is more vulnerable to shock damage and cutting and reduces its shock absorbing characteristics.

a) true
b) false

9. The tire and vehicle manufacturers provide recommendations for the right pressure for different loads and operating conditions. This is found on:

a) label on your car or truck
b) molded on the tire sidewall
c) both of the above

10. The Tire Safety Council and the Car Care Council estimates that proper tire inflation will save over:

a) 400,000 gallons of gasoline everyday
b) 2 million gallons of gasoline everyday
c) 4 million gallons of gasoline everyday
d) 10 million gallons of gasoline everyday

11. A passenger car tire in top condition can lose up to:

a) ½ pound of pressure per month
b) 1 pound of pressure per month
c) 2 pounds of pressure per month
a) 5 pounds of pressure per month

12. A truck tire in top condition can lose up to:

a) ½ pound of pressure per month
b) 1 pound of pressure per month
c) 2 pounds of pressure per month
d) 5 pounds of pressure per month

13. The main cause of small air losses in a tire wheel assembly in good condition is:

a) seepage between the bead and the wheel
b) seepage out the valve core
c) lack of a valve cap
d) air permeating the rubber of the tire

14. Inflation pressure should be checked when the tire is:

a) hot
b) cold
c) doesn't matter

15. The recommended frequency of inflation pressure checks using a quality gauge is:

a) daily
b) weekly
c) monthly
d) annually

16. A "hot" tire requires:

a) 30 minutes to cool down after you stop traveling
b) 1 hour to cool down after you stop traveling
c) 3-4 hours to cool down after you stop traveling
d) 8-12 hours to cool down after you stop traveling

17. On vehicles equipped with "dual" tires, it is most important to check:

a) outer dual only
b) inner dual only
c) both tires

18. With the correct inflation pressure for the load, one can expect to:

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