Miscellaneous Other Flashcards
Corrosion – pH level that causes corrosion to increase
Corrosion – Chloride level where pitting on steel begins
10 ppm
NDE - Weight used to check magnetic strength of an AC yoke
10 lb
Grounding - Maximum electrical resistance permitted from tank to earth
25 ohm
NDE – Min angle of eye-to-part to count as a Visual Exam
30 degrees
NDE - Weight used to check magnetic strength of a DC yoke
40 lb
NDE - Minimum light intensity when performing non- fluorescent MT or PT exams
100 ft-candles
Vacuum Box - Minimum light intensity when performing vacuum testing
100 ft-candles
NDE - Minimum black light intensity when performing fluorescent MT or PT exams
1000 micro- W/cm2
Brittle – Shell stress when brittle fracture is NOT a concern
NDE - Hole size that must be visible in RT when using a hole- type IQI
2T
Weld Qualification - Maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon
2T
Weld Qualification – The “all-position” test coupon
6G
NDE - Lead letter used during RT to check for backscatter radiation
B
NDE - Lead letter used during RT to indicate a film-side IQI
F
NDE - Lead letter used during RT to indicate a repaired weld
R
Repairs – Material where pre-heat can be substituted for a required PWHT
P-1
Repairs – Materials where control deposition welding can be substituted for a required PWHT
P1, P3, P4
Hot Taps – Nozzle thickness for hot tapped nozzles
Ext Strong
Repairs – Welding processes that can be used when substituting Preheat or Controlled Deposition welding for a required PWHT
SMAW, GMAW, FCAW, GTAW
Corrosion – In a corrosion cell, the part that corrodes
Anode
Corrosion – In a corrosion cell, the part that doesn’t corrode
Cathode
Linings – Minimum surface prep prior to applying lining
NACE 2 Near-white
Weld Qualification – Rejectable in RT when qualifying a welder
Crack, LoF, IP
Reconstructed – Maximum allowed out-of-plumbness
1/100 height
