API 570 #3

61)  What is usually the most accurate means for obtaining thickness measurements on installed pipe larger than NPS 1 ?

62)  What thickness measuring technique does not require the removal of some external piping insulation ?

63)  When ultrasonic thickness measurements are taken above __________ degrees F, instruments couplants, and procedures should be used that will result in accurate measurements at the higher temperature

64)  Typical digital thickness gages may  have trouble measuring thickness less than __________ inches

        65) When pressure testing of piping systems are conducted, they shall be performed in accordance with the requirements of :-

66)  If a lower pressure test (lower than prescribed by code) is used only for tightness of piping systems, the __________ may designate the pressure

67)  The preferred medium for a pressure test is __________

68)  If a non-toxic hydrocarbon (flammable) is used as the test medium, the liquid flash point shall be at least __________ degrees F or greater

69)  Piping fabricated of or having components of 300 series stainless steel should be tested with __________

70)  For sensitised austenitic stainless steel, piping subject to polythionic stress corrosion cracking, consideration should be given to using __________ for pressure testing

71)  When a pipe requires post weld heat treatment, when should the pressure test be performed ?

72)  During a pressure test, where test pressure will exceed the set pressure of the safety relieve valve or valves on a piping system, the safety relief valve or valves should be __________ when carrying out the test

73)  When using block valves to isolate a piping system for pressure test, what precaution should be taken ?

74)  Several methods may be used to verify that the correct alloy piping  is in a system. Pick the incorrect method from the list below :-

75)  Name a part of a piping system that thickness measurements are not normally routinely taken

76)  If environmental cracking is found during in-service inspection of welds, who assesses the problem ?

77)  If an inspector finds an imperfection in an original fabrication weld and analysis is required to assess the impact of the weld quality on piping integrity, which of the following may perform the analysis ?

78)  According to API 570, some welds in a piping system that has been subjected to radiography according to ASME B31.3 :-

79)  How should fasteners and gaskets be examined to determine whether they meet the material specifications

80)  When checking flange and valve bonnet bolts for corrosion, what type of NDT is usually used ?

81)  What course of action is called for when an inspector finds a flange joint that has been clamped and pumped with sealant ?

82)  All process piping systems must be categorised into different classes. On what are the classifications selection based ?

82)  (1) Inspection strategy based on likelihood and consequence of failure is called

82)  (2) An RBI assessment can be used to __________ the inspection interval limits in Table 1 of API 570 or the extent of the inspection conducted

83)  Listed below are several examples of a CLASS 1 piping system. Which one does not belong ?

84)  Of the three classification of piping systems, which includes the majority of unit processes and selected off-site piping ?

85)  Class 3 piping is described as being in services

86)  Who establishes inspection interval for thickness measurements, external visual inspections and for internal and supplemental inspections ?

87)  Thickness measurement inspection should be scheduled based on the calculation of not more than

        88) For external inspections for potential corrosion under insulation (CUI) on Class 1 systems, the examination should include at least __________ percent of all suspect areas and __________ percent of all areas of damaged insulation