Texas State Inspection Practice

What must a vehicle's speedometer do to pass inspection?

1. Display speed accurately

2. Display speed above 20 MPH

3. Only work at high speeds

4. Be calibrated to the GPS

The correct answer is: Display speed accurately

For a vehicle to pass an inspection, the speedometer must accurately display the vehicle's speed. This requirement is important because an accurate speedometer ensures that the driver is aware of their speed relative to the speed limit, contributing to overall road safety. If the speedometer provides incorrect information, it can lead to speeding tickets or accidents, impacting both the driver and others on the road. The other options do not meet the critical requirement; for example, a speedometer that only works at high speeds would not be reliable for lower speeds, and a calibration to GPS, while useful, is not a standard requirement for passing inspection in most jurisdictions. Additionally, a speedometer that simply needs to display speeds above 20 MPH does not address the necessity of overall accuracy, which is fundamental for safe vehicle operation.