North Carolina RADAR State Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What advantage does the angular effect provide regarding RADAR speed measurement?

It works to the law enforcement officer's advantage

It works to the motorist's advantage

The angular effect refers to how the angle at which a RADAR unit is aimed at a moving vehicle can significantly influence the speed reading it provides. When the RADAR signal is transmitted at an angle rather than straight on, it can lead to a discrepancy between the actual speed of the vehicle and the speed measured by the RADAR.

This effect can work to the motorist's advantage because when a RADAR is aimed at an angle, the speed measured may be lower than the actual speed of the vehicle, resulting in an underestimation of speed. If a law enforcement officer measures the speed of a vehicle approaching or receding at an angle, this can lead to a reading that does not accurately reflect the true speed. This means that in some scenarios, a driver might be falsely found to be within legal speed limits when they are actually speeding, thus providing an advantage to the motorist.

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It causes measurement errors

It increases accuracy in measurements

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