What is cold welding? – McqOptions

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1.	What is cold welding?
A.	Welding at very low temperature
B.	Welding using ultrasonic waves
C.	Welding under water
D.	Welding at constant temperature
Answer» C. Welding under water

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<p>Sonograms work under the principle of Doppler Effect?</p>
<p>What is the other name for ultrasonic flaw detector?</p>
What is cold welding?
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