If weld repairs are required, the effects of temper embrittlement can be temporarily reversed (de- embrittled) by heating at ______ for 2 hours per inch of thickness and rapidly cooling to room temperature.
Answer(s): B
For carbon steel, common velocity limits are generally limited to _________ fps for rich amine and _______ fps for lean amine.
Answer(s): D
Heat treatment can have a significant effect on the toughness and hence fatigue resistance of a metal. In general, ________ grained microstructures tend to perform better than _________ grained.
Answer(s): A
Short term overheating is a permanent deformation occurring at relatively _________ stress levels as a result of localized overheating. This usually results in bulging and failure by stress rupture.
Temperature, ________ and stress are critical factors of stress rupture. This is usually found in furnaces with coking tendencies and fired heater tubes.
Answer(s): C
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