When using hydrochloric acid in an etch test, the welds are immersed in the reagent ____.
A) at room temperature
B) at or near freezing
C) at or near boiling temperature
D) at 100 degrees Fahrenheit

Question

Quizplus · Accepted Answer

Hydrochloric acid is typically heated to around boiling (100 degrees Celsius or 212 degrees Fahrenheit) to perform an etch test. This helps to accelerate the process and provide clearer and more distinct results.

When Using Hydrochloric Acid in an Etch Test, the Welds