Oxidation of carbon steel begins to become significant above _________.
Answer(s): C
Cracks connecting hydrogen blisters are referred to as ________.
Answer(s): B
PWHT is ___________ in preventing caustic SCC.
Answer(s): A
Sulfur and chlorine species in fuel will form sulfur dioxide, sulfur trioxide and hydrogen chloride within the combustion products. At low enough temperatures, these gases and the water vapor in the flue gas will condense to form _________ acid.
Answer(s): D
With thermal fatigue, time to failure is a function of the magnitude of the stress and the number of cycles and decreases with _________ stress and ________ cycles.
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