Percentages

Question 1

NDE– RT film density of weld as compared to IQI’s (range)

Answer 1

-15 to +30%

Question 2

Design - Mill tolerance of seamless pipe

Answer 2

-12.5%

Question 3

Pipe class – percent of H2S in process to classify as class 1 pipe

Answer 3

Greater than or equal to 3%

Question 4

NDE – percent of circuit welds to RT/UT when fabricating Norm service pipe

Answer 4

5%

Question 5

NDE– percentage of welds to VT when fabricating normal service pipe

Answer 5

5%

Question 6

Materials – maximum amount of chrome to be considered low-alloy steel

Answer 6

9%

Question 7

NDE – overlap with a UT scan, % of transducer diameter

Answer 7

10%

Question 8

AI – amount of time inspector must be involved in inspection activities – required to maintain API 570 certification 

Answer 8

20%

Question 9

Materials – amount of Nickel for a material to be a nickel alloy

Answer 9

Greater than 30%

Question 10

NDE - % Of visual and RT/UT required when fabricating severe cycle pipe

Answer 10

100%

Question 11

Testing – minimum pneumatic test pressure, % of design pressure

Answer 11

110%

Question 12

Testing – minimum test pressure for underground pipe, % of maximum operating pressure. Test In lieu of digging 

Answer 12

110%

Question 13

PRV – maximum set pressure for thermal relief valve, % of design pressure

Answer 13

120%