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API 570 Close Book Mockup Combined Exam Set Questions With Revised Correct Detailed Answers
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API 570 Close Book Mockup Combined Exam Set Questions With Revised Correct Detailed Answers 1) A process pipe should be classified as Class 1 when the percentage of H2S exceeds: A. 0.5%. B. 1%. C. 2%. D. 3%. D. 3%. 2) A welder loses his welding qualifications when he has not w...
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