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API 653 EXAM ACTUAL EXAM STUDY GUIDE QUESTIONS AND CORRECT ANSWERS ALREADY GRADED A+

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API 653 EXAM ACTUAL EXAM STUDY GUIDE QUESTIONS AND CORRECT ANSWERS ALREADY GRADED A+

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  • 23 de junio de 2024
  • 33
  • 2023/2024
  • Examen
  • Preguntas y respuestas

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  • api 653 exam actual exam
  • api 653 exam
  • api 653 exam actual exam
  • api 653 exam
  • api 653 exam actual exam study guide
  • api 653 exam actual exam study guide

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Page 1 of 33 1 API 653 EXAM ACTUAL EXAM STUDY GUIDE QUESTIONS AND CORRECT ANSWERS 2024 -2025 ALREADY GRADED A+ Most existing tank bottoms are inspected with _________. Areas of concer n found are normally checked with ____________. - ANSWER -MFL, UT What is the width of the Critical Zone on existing tank bottoms? - ANSWER -3" What is the minimum thickness of an existing tank bottom in a Critical Zone? - ANSWER -Less of 1/2 of original fl oor or. 1/2 T -min of 1st Shell Course, Typically it is 0.125" What is the required length of RT on a Vert or Horizontal Tank Weld? - ANSWER -6" What is the required length of RT at Tank Intersections at: Vertical? Horizontal? - ANSWER -3" on Verts weld seam and 2" on each side of verts If there is a weld defect in a spot RT, how many RTs are required? - ANSWER -2 unless there is 3" of good weld bey ond the defect. Page 2 of 33 2 Method for RT: RT is shot to____________? - ANSWER -ASME Section V What requirements are needed for Personnel to shoot an RT on a Tank? - ANSWER -ASNT SNT -
TC-1A Acceptance Criteria for RT on a tank is? - ANSWER -ASME Section VIII A rounded indication is one that's length is less than or equal to ___________ times its width - ANSWER -3 times 100% of new vertical welds should be RT'd if the shell thickness is greater than _______________? - ANSWER -1" How many RT's are needed when a rectangul ar insert plate is installed in the shell? - ANSWER -6 RTs Which RT exposure technique is preferred? - ANSWER -Single Wall What is the minimum # of RTs required for a nozzle/pipe butt weld being completed using a double -wall technique with a single view? - ANSWER -3 - 120 degrees apart Page 3 of 33 3 What is the minimum # of RTs required for a nozzle/pipe butt weld being RT'd using a double wall technique with a double -wall view? - ANSWER -2- 0 degree and 90 degree The maximum pipe size when RT'ing a pipe using docuble -wall technique with a double -wall view is _________? - ANSWER -NPS 3 or 3.5" OD. Wire IQI's are placed on the weld with the wires ____________ to the weld? - ANSWER -
Perpendicular Hole Type IQI's are normally placed ___________ to the weld. - ANSWER -Adjacent If a hole -type IQI is used; the ________ hole must be seen in the RT. - ANSWER -2T hole The preferred location for the IQI is on the ________ side? - ANSWER -Source Side If an IQI is placed on the film side, a lead letter __________ should be placed near the IQI. - ANSWER -F If a shim is used under a hole -type IQI, then ________ side of the IQI should be distinctly visible in the RT? - ANSWER -3 side Page 4 of 33 4 When using a gamma rad iation source, the film density limits are_________ for the IQI and weld? - ANSWER -2.0 to 4.0 Densitometers should be calibrated how often? - ANSWER -90 days What is an indication of unacceptable backscatter when taking an RT? - ANSWER -Faint light B Iridium 192 is used on wall thicknesses of ____________? - ANSWER -O.25" to 3.0" Cobalt 60 is used on wall thicknesses of ______________? - ANSWER -1.5" to 7" When qualifying a welder with RT, what 3 indications are always unacceptable? - ANSWER -
Cracks, Lack o f Fusion and Lack of Penatration When can RT not be used to qualify a welder? What Process? - ANSWER -GMAW - SC How much RT is required to qualify a welder on a coupon? 1st Production weld? - ANSWER -6", 6"

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