Which of the following statements about an oscilloscope is NOT true?

The statement indicating that the scope pattern measures time on a vertical scale is not true. In fact, an oscilloscope displays time on the horizontal scale (X-axis) and voltage on the vertical scale (Y-axis). This allows users to visualize waveforms and analyze how signals change over time.

Oscilloscopes can indeed be PC-based or standalone devices, providing flexibility for users to choose the setup that suits their needs. They can be either analog or digital instruments, accommodating various levels of technology and user preference. Additionally, oscilloscopes are valuable tools in diagnosing not only electrical issues but also mechanical problems, particularly when analyzing signals from sensors or actuators related to mechanical systems.