Tag API-570 reliable exam sample questions

Q63. A welder qualified to weld in accordance with one qualified WPS is also qualified to weld.

Q64. What is the working pressure of a 150 Ib. flange, SA 350 Gr.LF6 CL 1, used at 400°F?

Q65. Of the following examples, which one may cause a leak in a threaded joint?

Q66. A piping system started with a wall thickness of 0.375 inches. Over a five year period the wall thickness is now 0.1″.
What is the long term corrosion rate?

Q67. Impact testing of each form of material for any specification shall be done using procedures and apparatus in accordance with

Q68. With respect to Category ‘D’ service, what is the maximum allowable undercut for a branch connection?

Q69. Given the above information, what is the short term corrosion rate of the above piping system?

Q70. API 570 covers the inspection of__________.

Q71. What is the required thickness of straight run pipe subject to internal pressure only, based on the following conditions: NPS 14, SA 285 Gr.C, EFW Spiral seam (No radiography), operating at 216 psi / 378?F

Q72. 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?

Q73. Lower levels of soil resistivity are:

Q74. What is the minimum lifting power of an AC electromagnetic yoke used in magnetic particle inspection?

Q75. 375″
0.190″
0.03 inches/year 5 Years
MAWP:

Q76. Austenitic stainless steel piping systems operating between 150°F-400°F are susceptible to:

Q77. An operator notice a pipe off its support, what should be done?

Q78. On a class 1500 NPS 4 blind flange, what is the minimum thickness permitted?

Q79. Erosion of the piping system usually occurs at:

Q80. The downstream limit of the injection point circuit is the second change in flow direction past the injection point or:

Q81. A pipe has the highest potential of resulting in an immediate emergency if a leak were to occur.

Q82. Bolts should extend during the installation of flanged connections.