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| Q. |
Most commercial ultrasonic testing is accomplished using frequencies between: |
| A. | 1 and 25 kHz |
| B. | 0.2 and 25 MHz |
| C. | 1 and 1 000 kHz |
| D. | 15 and 100 MHz |
| Answer» B. 0.2 and 25 MHz | |
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EZINWO KINIKANWO
1 year ago
Please I would love to have material on NDT , love this page and this courses
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