Q74. A leak test is an alternative to inspection of buried piping.
What is the minimum liquid pressure to adequately conduct this test?

Q75. The valve used to automatically prevent back flow is valve.

Q76. 375″
0.190″
0.03 inches/year 5 Years
MAWP:

Q77. Is the thickness range on the WPS supported by the PQR?

Q78. Bolts should extend during the installation of flanged connections.

Q79. What is the minimum holding time of SA-106 Grade B, 1 inch thick material?

Q80. What is the prescribed alignment for the inside surfaces of circumferential welds to be groove welded?

Q81. What is the minimum lifting power of an AC electromagnetic yoke used in magnetic particle inspection?

Q82. Given the above information, what is the short term corrosion rate of the above piping system?

Q83. What is the acceptable method to temporarily repair a longitudinal crack in an existing piping system?

Q84. When an injection point circuit for the purpose of inspection is designated, the recommended up stream limit of the injection point circuit shall be the greater of ?

Q85. A qualified welder may seal weld a threaded joint if_______.

Q86. Which of the following applies to socket welds in piping systems?

Q87. An inspector is evaluating a radiograph, a light image of a “B” appears on a darker background of the radiograph, the.

Q88. The base metal is P No.1, the weld metal is A No.1, and the wall thickness is 7/8″.
What is the holding time at 1100- 1200?F for heat treatment

Q89. Geometric unsharpness of the radiograph of a component under 2″ th1ck shall not exceed

Q90. API 570 was developed to provide for the inspection of in-service process piping.

Q91. Is the attached PQR properly qualified?

Q92. What document may be used as a guide when examiners are being qualified by their employer?

Q93. Temperatures above can damage transducers not equipped with delay line material.