Q. Entry surface resolution is a characteristic of an ultrasonic testing system whichdefines its ability to: (Solved)
1. Detect discontinuities oriented in a direction parallel to the ultrasonic beam
2. Detect discontinuities located in the center of a forging containing a fine metallurgical structure
3. Detect minute surface scratches
4. Detect discontinuities located just beneath the entry surface in the part being tested
- d. Detect discontinuities located just beneath the entry surface in the part being tested