Question

In pulse-echo method, which defect does the following amplitude-time graph represent?

(a) No defect

(b) Small defect

(c) Mediocre defect

(d) Large defect

Answer 1

The correct answer is (a) No defect

The best I can explain: Ultrasonic inspection method further gets classified under one of the type of called pulse-echo method. It is the most commonly used ultrasonic testing method. The following graph represents a no defect in pulse echo method.