South Carolina Class D Knowledge Test Practice
Full test preview Question 1 of 30
0 answered 30 remaining
Passing target: 80% (24/30)
You put a penny head first into the deepest groove of your tire's tread. You can see all of Lincoln's head. What does this tell you?
A penny is inserted head first into a tire-tread groove. All of Lincoln’s upside-down head is visible above the tread, also shown in a larger detail. The question has no replacement instruction or answer highlight.
Correct answer: The tread is too worn, and you should replace the tires before you drive
Why
Low tread and the wrong air pressure are both tire problems that can lead to crashes, and both are easy to check. For the test, hold the penny with Lincoln's body between your thumb and finger, and put his head into the deepest groove that you can find. Do this check on each tire.
Verified against South Carolina Driver's Manual · Tire inspection · p. 45, 46
Report a question issueContinue learning
