Minute cracks in metals and minute faults in welded joints can be dete – McqOptions

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1.	Minute cracks in metals and minute faults in welded joints can be detected using
A.	IR rays
B.	UV rays
C.	<span class="symbol">a</span>
D.	rays
E.	X-ray/ -rays
Answer» E. X-ray/ -rays

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