Miscellaneous Other Flashcards
NDE – weight used to check magnetic strength of an AC yoke
10 lb.
NDE – weight used to check magnetic strength of a DC yoke
40 lb
NDE – weight used to check magnetic strength of a permanent magnet yoke
40 lb
NDE – minimum angle of eye-to-part to count as a visual exam
30°
NDE – two primary Gamma-Ray RT sources
Iridium 192 & Cobalt 60
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 – hole size that must be visible in RT when using a hole-type IQI
2T
NDE – minimum light intensity when performing non-fluorescent MT or PT or VT exams
100 ft– candles
NDE – minimum black light intensity when performing MT or PT Fluorescent exams 
1000 microW/cm^2
NDE – maximum UT scanning speed
6 “/sec
Weld qualification – maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon
2T
Welder qualification – “the all- position” test coupon
6G
Weld qualification – rejectable in RT when qualifying a welder
Crack, LoF, IP
Weld qualification – which welding process can a welder not be qualified by RT/UT
GMAW – SC
Welding – variables needed on WPS
Essential and nonessential
Welding – variables needed on PQR
Essential
Welding – minimum taper required for welds with mismatch
30°
Design – two most common CS pipe materials
A53 and A106
Repair – maximum allowed SMYS for pipe if fillet– welded patch is installed
40,000 psi
Test – maximum strength allowed during a pressure test
90% of SMYS
Test – pH of water needed to reduce likelihood of MIC (bugs)
Greater than or equal to 10 Ph
Test – pressure to perform inspection during a pressure test of pipe that has been in service
Less than or equal to MAWP
Corrosion – typical external corrosion rate for a dry rural area
Less than 1 mpy
Corrosion – external corrosion rate inland locals with moderate rain and humidity
1-3 mpy
Corrosion - possible external corrosion rate for industrial environments with acid or sulfur compounds
5-10 mpy
Corrosion – possible external corrosion rate for marine locations
20 mpy
Welding – most commonly used welding process
SMAW
Welding – GMAW transfer mode most likely to have LOF
Short circuit
Welding – most extensively used NDE method for welds
Visual
Welding – weld metal is most similar to what fabrication process
Casting
Welding - meaning of first two digits in the electrode designation for a SMAW electrode
Strength
Welding – Meaning of “S” In the electrode designation for a GMAW or GTAW electrode
Solid Wire
