API-570 exam

The radiograph of a Normal Fluid service piping weld revealed a crack. What is the acceptable crack length if the pipe wall was 0.375?A . None B. T/3 C. 3/16" D. Cracks will not show on radiographsView AnswerAnswer: A

What is the maximum Brinell hardness of base metal P-6?A . 241 B. 270 C. 281 D. not specifiedView AnswerAnswer: A

A leak test is an alternative to inspection of buried piping. What is the minimum liquid pressure to adequately conduct this test?A . 1 1/2 times the MAWP B. 1 1/4 times the MAWP C. 10% greater than MAWP D. Actual MAWPView AnswerAnswer: C

Which of the following best describes API 574?A . code B. Standard C. specification D. Recommended practiceView AnswerAnswer: D

What is the minimum holding time of SA-106 Grade B, 1 inch thick material?A . 2.4 hours B. 2 hours C. 1 hour D. not specifiedView AnswerAnswer: C

03 inches/year 5 Years MAWP:A . 674 psig B. 323 psig C. 125 psig D. Metal loss exceeds the requirements for 5 year inspection intervalView AnswerAnswer: A

On a class 1500 NPS 4 blind flange, what is the minimum thickness permitted?A . 1.12” B. 1.88” C. 2.12” D. 2.88”View AnswerAnswer: C

What is the inspection interval for buried piping without cathodic protection, the soil resistivity is 6,500 ohm-cm?A . 10 years B. 15 years C. 5 years D. whenever a leak is suspectedView AnswerAnswer: A

For a single wall material thickness, over 0.375” through 0.50”, what is the hole type designation for a source side penetrameterA . 15 B. 17 C. 20 D. 25View AnswerAnswer: B

The potential for personnel exposure is deemed to be significant in which fluid service?A . Category M fluid service B. High pressure fluid service C. Normal fluid service D. Category B fluid serviceView AnswerAnswer: A