Piping Inspector API-570 Practice Test Questions

1. API API-570 Exam Piping Inspector https://www.passquestion.com/api-570.html 35% OFF on All, Including API-570 Questions and Answers Pass API API-570 Exam with PassQuestion API-570 questions and answers in the first attempt. https://www.passquestion.com/ 1 / 4

2. 1.Determine the MAWP of the following piping system, at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/100°F NPS 2, Sch.80, A 106 B 2.375” 0.190” 0.03 inches/year 5 Years MAWP: A. 674 psig B. 323 psig C. 125 psig D. Metal loss exceeds the requirements for 5 year inspection interval Answer: A 2.What is the pressure design thickness of NPS 10, A516 Gr.65 Type 22 pipe that operate at 1200 psig/750°F A. 0.432” B. 0.46” C. 0.928” D. Not enough information given Answer: B 3.A leak test is an alternative to inspection of buried piping. What is the minimum liquid pressure to adequately conduct this test? A. 1 1/2 times the MAWP B. 1 1/4 times the MAWP C. 10% greater than MAWP D. Actual MAWP Answer: C 4.For a single wall material thickness, over 0.375” through 0.50”, what is the hole type designation for a source side penetrameter A. 15 B. 17 C. 20 D. 25 Answer: B 5.Give the corresponding “P” number for SA 414 Gr.A material A. 1 B. 2 C. 3 D. 11B 2 / 4

3. Answer: A 6.On a class 1500 NPS 4 blind flange, what is the minimum thickness permitted? A. 1.12” B. 1.88” C. 2.12” D. 2.88” Answer: C 7.For 1 1/4” thick carbon steel, what is the recommended preheat temperature? A. 300°F B. 235°F C. 175°F D. None Answer: C 8.Determine the MAWP of the following piping system , at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/100°F NPS 20, Sch. std, A 106 B 20” 0.280” 0.02 inches/year 5 Years MAWP= A. 160 psig B. 550 psig C. 723 psig D. 125 psig Answer: A 9.What is the inspection interval for buried piping without cathodic protection, the soil resistivity is 6,500 ohm-cm? A. 10 years B. 15 years C. 5 years D. whenever a leak is suspected Answer: A 10.What is the maximum length allowed for individual slag trapped in a weld in a Severe Cyclic Conditions piping system? A. >TW X 3 B. £TW / 3 C. ³12T D. 3/23” 3 / 4

4. Answer: B 11.What is the design thickness of NPS 2 ½, SA106 Gr.B pipe that operates at 25 psi / 200°F A. 0.275” B. 0.100” C. 0.002” D. not enough information given Answer: C 12.With respect to Category ‘D’ service, what is the maximum allowable undercut for a branch connection? A. Zero (no evident imperfections) B. £ 1/32” C. £ 1 mm D. Both B and C Answer: D 13.What is the test pressure of a metallic piping system whose design temperature is above the test temperature using the following conditions? NPS 6, SA106 Gr.B, 100 psi / 800°F A. 150 psi B. 450 psi C. 278 psi D. Test temperature verses design temperatures are not different Answer: C 14.Determine the MAWP of the following piping system, at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/750°F NPS 6, A285 C EFW, Straight Seam(No radiography) 6 5/8” 0.280” 0.01 inches/year 5 Years MAWP= A. 522 psig B. 487 psig C. 878 psig D. 125 psig Answer: A 4 / 4