When does the manual say to check your tire pressure?
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A.
Right after a highway drive when the tires are warm
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B.
After driving at least 10 minutes to warm the tires
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C.
Before you have driven or at least three hours after Correct
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D.
Only when the low-pressure warning light comes on
The answer is "Before you have driven or at least three hours after"
Tires must be checked cold so heat from driving does not inflate the reading above the true pressure. A driver picking A has the rule inverted, guessing that warmed-up tires give a truer reading when the heat actually pushes psi above the real value and hides underinflation.
The traps in the wrong answers
A. Right after a highway drive when the tires are warm
Warm tires read high and hide underinflation. This answer reverses the cold-tire rule, guessing that warmed-up tires give a truer reading.
B. After driving at least 10 minutes to warm the tires
Ten minutes of driving heats the tires and skews the psi. This answer splits the difference between hot and cold, but the manual demands a fully cold reading.
D. Only when the low-pressure warning light comes on
The manual asks for a monthly check regardless of dashboard warnings. This answer relies on the TPMS light, which triggers only after pressure has already dropped well below safe.
This question tests your knowledge of Vehicle Equipment in Pennsylvania. Source: Pennsylvania Driver Manual, "Vehicle Checks: Preparing to Drive - Tire Safety," p.31..
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