Ohio Tire Repair Technician Practice Exam

Ohio Tire Repair Technician Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2025|2026 Q&A | Instant Download Pdf

(All subjects — safety, tire construction, repair, mounting, balancing, customer service, and regulations)

• Which of the following is the primary function of a tire?

a) Provide steering response

b) Support the vehicle’s weight

c) Provide traction and absorb shocks

d) Reduce engine load

Rationale: Tires provide traction, support the vehicle’s weight, and

absorb road shocks for a smooth ride.

• What does PSI stand for in tire terminology?

a) Pounds per square inch

b) Pressure strength indicator 1 / 4

c) Pounds per inch

d) Pressure system index

Rationale: PSI stands for pounds per square inch, a unit for

measuring tire air pressure.

• What is the correct method for checking tire pressure?

a) By hand squeeze

b) After driving

c) When tires are cold, using a pressure gauge

d) When the engine is warm

Rationale: Tire pressure should always be checked when tires are

cold to ensure accurate readings.

• What does the first number in a tire size (e.g., 205/65R15) represent?

a) The width of the tire in millimeters

b) The diameter of the rim in inches

c) The aspect ratio

d) The tire load index

Rationale: The first number represents the tire width measured from

sidewall to sidewall in millimeters.

5. The “R” in a tire size such as 215/60R16 stands for:

a) Reinforced

b) Radial construction

c) Run-flat

d) Reversible 2 / 4

Rationale: “R” indicates that the tire has radial construction, the

most common modern design.

• What tool is used to measure tread depth?

a) Torque wrench

b) Tread depth gauge

c) Air pressure gauge

d) Feeler gauge

Rationale: A tread depth gauge measures remaining tread to assess

tire safety and wear.

• Minimum legal tread depth in most U.S. states for passenger vehicles

is:

• 1/16 inch (2/32 inch)
• 2/32 inch
• 3/32 inch
• 4/32 inch

Rationale: The U.S. minimum legal tread depth is 2/32 inch for safe

traction and braking.

• What is the purpose of tire rotation?

a) To adjust alignment

b) To promote even tread wear

c) To clean wheels

d) To balance tires 3 / 4

Rationale: Rotating tires promotes even tread wear and extends tire

life.

9. Tires should typically be rotated every:

• 3,000 miles
• 5,000–8,000 miles
• 6,000–8,000 miles
• 10,000 miles

Rationale: Rotating tires every 6,000–8,000 miles maintains even

wear patterns.

10. Overinflated tires may cause:

a) Excessive wear on outer edges

b) Excessive wear in the center

c) Reduced fuel economy

d) Soft handling

Rationale: Overinflation concentrates wear in the tire’s center,

reducing traction.

11. A tire with low air pressure will:

a) Improve fuel economy

b) Wear more on the outer edges

c) Wear evenly

d) Have better steering response

Rationale: Underinflated tires wear on outer edges and reduce fuel

efficiency.

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