Q. Typical frequencies which might be used to perform ultrasonic testing of concreteare: (Solved)
1. 25 to 100 kHz
2. 200 kHz to 5 MHz
3. 1 MHz to 5 MHz
4. 2.25 MHz to 10 MHz
- a. 25 to 100 kHz
1. 25 to 100 kHz
2. 200 kHz to 5 MHz
3. 1 MHz to 5 MHz
4. 2.25 MHz to 10 MHz