Ultrasonic Testing Level 1 Practice Test

What is the primary effect of the rectification control on the displayed waveform?

It adjusts the waveform display It increases subsequent pulse power It changes the material properties It alters the frequency

Correct Answer:

It adjusts the waveform display

Explanation:

Rectification control changes how the received signal is shown on the display by converting negative portions of the waveform to positive (a display polarity adjustment). This makes echo amplitudes easier to read and compare, since everything appears with the same polarity. It does not change the actual ultrasonic energy sent into the material, the material properties, or the transducer frequency; it’s purely a display adjustment for the waveform.

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