You perform the penny test on a tire and part of Lincoln's head is covered by the tread. According to the Nevada manual, what does this tell you about the tire?
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A.
The tire pressure is too low
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B.
The wheel needs to be rebalanced
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C.
The tread depth is still safe Correct
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D.
The tire needs to be replaced soon
The answer is "The tread depth is still safe"
In the Nevada manual's penny test, place Lincoln's head into a tread groove where the tread looks lowest. If any part of Lincoln's head is covered by the tread, the tire still has a safe amount of tread. If the whole head sits above the tread, the depth is too shallow to grip well in bad conditions.
The traps in the wrong answers
A. The tire pressure is too low
The penny test measures tread depth, not tire pressure; pressure requires a gauge. Confuses the coin-based tread check with the monthly gauge reading recommended to keep inflation on spec.
B. The wheel needs to be rebalanced
The penny test measures tread depth, not wheel balance; balance is diagnosed by vibration, not by a coin. Substitutes the tire shop's routine rotate-and-balance service for the manual's simple coin check of tread depth.
D. The tire needs to be replaced soon
Covering Lincoln's head signals safe tread; a covered head is the pass condition of the penny test, not a fail. Reverses the penny test rule so a passing result reads as a failing one.
This question tests your knowledge of Vehicle Equipment in Nevada. Source: Nevada Driver Manual, "Chapter 3 - Driving Safely, Tire Safety," p.27..
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