Passage:
In ultrasonic testing of pipeline weld seams, high-frequency sound waves are directed into the steel to detect internal voids. When these acoustic pulses encounter a boundary between solid metal and an internal discontinuity, a portion of the wave reflects back to the transducer rather than passing through. By measuring the time interval between the initial pulse transmission and the arrival of the reflected echo, technicians can precisely determine the depth of the flaw beneath the pipe surface.
Statement: Based on the passage, inspectors calculate how deep a structural defect lies within a weld by tracking the elapsed time required for reflected acoustic signals to return to the sensor.
Answer: Answer
Answer
True
The statement is true because it accurately restates the passage's explanation using synonymous terms. The text explains that measuring the time interval between sending a sound pulse and receiving the reflected echo allows technicians to determine flaw depth. The statement preserves this exact functional relationship using equivalent phrases such as 'tracking the elapsed time' and 'depth a structural defect lies.'
Step-by-Step Solution
Key Concept
Paraphrased Fact Recognition
Estimated Time:1m 0s