3 - 2011 570 Answers (27 75=102)

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) 1. What is the required thickness, given the design conditions below for an existing piping system with a zero corrosion allowance (internally lined)? A) 0.168 inches B) 0.147 inches C) 0.135 inches D) 0.186 inches Show your work below for 50% of the question value = show your work steps and all math): Given: Design Pressure & Temperature = 600 psig @ 500°F, 10 NPS A-106-B Seamless pipe

tm = PD ÷ 2(SE + PY) + 0* … ASME B31.3 Formula 3A … See Para. 304.1.2 *Note: Allowances are “added” at the end of formula … ZERO “CA” is illustrated above so that the API 570 candidate may understand how to deal with questions in this regard. First, solve PD, SE, & PY values separately, quickly, efficiently & double check them. PD = 6450 (600 x 10.750*) … *10.750 = 10 NPS OD value given in API 574 Pipe Schedules SE = 18,900 (A-1 Tables) … Table A-1 of ASME B31.3 should be tabbed at CS pipe & others PY= 240 (600 x 0.4) … Y value of 0.4 = CS pipe value from Table 304.1.1 of B31.3 Formula

t = 6450 ÷ 2 (18,900 + 240) or 38,280 = .16849 = .168 inches … Answer = A Tip # 1: If your value is not listed above in one of the four answers … Consider the fact that common errors include simple math & selection of wrong values when working calcs. Make sure that you always double check the math and NEVER RUSH when in Table A-1 because the letters are SO SMALL & often a wrong value for “ksi” is applied based on wrong temp column or material row selected by mistake. Lesson Learned: Double check all A-1 Table values. Tip # 2: If you are very close to an answer, but maybe are one of two or a few mils off, consider that your Pipe OD value used may be incorrect … 10.750 versus 10.625, etc … Recheck API 574 Pipe Schedules and apply the correct OD piping value or recheck other factors, especially E. 2. What is the required thickness, given the same design conditions in question # 1 above utilizing a given Corrosion Allowance of .062 inches (1/16”)? A) 0.197 inches B) 0.230 inches C) 0.209 inches D) 0.248 inches Show your work below for 50% of the question’s value:

tm = PD ÷ 2(SE + PY) + C … tm = .168 inches + C (.062 in.) … tm = .230 inches Therefore the answer to number 2 = B … If you missed # 1, you will miss # 2!!! 3. What is the required thickness (as defined by API 570), given the same design conditions in the question # 1 above and owner/user Engineering structural minimum thickness requirement of .150 inches for NPS 10 piping systems of all Classes? A) 0.147 inches B) 0.150 inches C) 0.168 inches D) None of these Show your work below for 50% of the question’s value & give the API 570 references:

tm = .168 in. (Answer to Question # 1) … 0.168 > 0.150, so 0.168 or answer “C” is correct The .150 (structural minimum) is not the answer … See API 570, Para. 3.57, 3.58 & 3.59 The greater value (of tm or structural minimum) must be selected … remember this!!!

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) 4. For calculating minimum required thickness for straight pipe under internal pressure, what values are used in the formulas for pressure design thickness & minimum required thickness? A) T = pressure design thickness and “t” = minimum required thickness B) t = pressure design thickness and T = minimum required thickness C) t m = pressure design thickness and “t” = minimum required thickness D) t = pressure design thickness and t m = minimum required thickness Answer = D … ASME B31.3, Section 304 Formula nomenclature 5. What is the minimum required thickness of a blank made from ASTM A516 Gr. 60 Plate Material with a with a ring joint design and gasket pitch diameter of 12 inches in a piping system with a design pressure of 400 psi @ 300°F? A) .632 inches.

B) .756 inches.

C) .692 inches

D) .734 inches.

Show work below for 50% of question’s value & give ASME B31.3 references: Apply formula 15 of ASME B31.3 Step 1 … Solve 3P & 16SE … 3P = 1200 … 16 SE = 16 x 18,900 = 302400 Step 2 … (3P ÷ 16SE) or 1200 ÷ 302400 = .003968 … Remember “c” is saved for last!!! Step 3 … The square root of .003968 = .063, and dg = 12 x .063 = .756 inches Step 4 … Add CA last … None was given or assumed! Solution is .756 inches = “B” 6. Using the same given design and values as question # 5 above, include a given Corrosion allowance of .125 inches (1/8”). What is the required minimum thickness now? A) .757 in. B) .881 in. C) .817 in. D) .859 in. Solution: “c” is saved for last, we add Corrosion Allow … .756 + .125 = .881 inches = “B” 7. For calculating minimum thickness of a blank, value dg = all of the following except: A) Inside diameter of gasket for raised or flat face flanges B) Inside diameter of gasket for ring joints C) Gasket pitch diameter for ring joints D) Gasket pitch diameter for fully retained gasketed flanges Answer = B … Reference: 304.5.3 Formula Notes 8. What is the minimum metal temperature exempt from impact testing for API 5L, Grade X-60 seamless pipe having a .750 nominal thickness & having been normalized during manufacture? A) 53°F B) 15°F C) -20°F D) 30°F Answer = B … Reference: Table A-1 = “A” value Note 6/323.2.2b/Table & Fig 323.2.2A  Note 2 of Figure 323.2.2A refers you to Value “B” in Table 323.2.2A

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) INSTRUCTIONS: THIS PROBLEM COVERS QUESTIONS 9 – 14 ON THIS PAGE!!! Inspection records contain the following information for thickness measurement location (TML) in an elbow located just outside of a cooling tower flanged connection. Thickness 0.375 @ Baseline UT performed in 2000, 0.350 after 5 years in 2005, and 0.300 after 10 years in 2010. Other Information: The .300 inch thickness is the lowest reading in the piping circuit and showed an increase in loss since the last inspection, due to increased flow velocity, according to the Plant Corrosion Specialist. The required thickness is .200 in. and the piping Circuit was designated as Class 3 for Cooling Water and the 24 NPS line is insulated and adjacent to the cooling tower! 9. On the basis of information above, long-term corrosion rate for the location is: A) 1 ½ mils per year B) 7.5 mils per year C) 10 mils per year D) 15 mils per year. Answer = B … Solution: .375 - .300 = .075 ÷ 10 years = 7.5 mils per year Reference: API 570, Para. 7.1.1 (Formula for LT) 10. On the basis of information above, short-term corrosion rate for the location is: A) 1 ½ mils per year B) 5 mils per year C) 10 mils per year D) 15 mils per year. Answer = C … Solution: .350 - .300 = .050 ÷ 5 years = 10 mils per year Reference: API 570, Para. 7.1.1 (Formula for ST) 11. On the basis of information above, remaining life of the piping system is: A) 1 ½ years

B) 5 years

C) 10 years

D) 25 years

Answer = C … Solution: .300 - .200 = .100 ÷ 10 mils per year = 10 years Remaining Life (ST rate selected after consultation with Corrosion specialist as per API 570, Para. 7.1.1*) Reference: API 570, Para. 7.1.1 … *Last Paragraph 12. On the basis of information above, half-remaining life of the piping system is: A) 9 months B) 2.5 years C) 5 years D) 12.5 years Answer = C … Reference: API 570, Para. 7.1.1 (Formula for RL) 13. On the basis of info above, maximum inspection interval of the piping system is: A) 9 months B) 2.5 years C) 5 years D) 10 years Answer = C … Reference: API 570, Para. 6.3.3 & Table 2 … Class 3 = 10 years, so use the lesser of 10 years from the table or the Half-life of 5 years … Answer = 5 yrs 14. The insulation on this 24 NPS line approximately 100 meters long and is damaged in some locations. The Inspector has called for the API 570 recommended % of insulation removal for this condition & total area of insulation = 190 sq. meters. How much insulation will be removed? A) 19 sq. meters

B) 1.9 sq. meters

C) 47.5 sq. meters

D) 4.75 sq. meters

Answer = C … Reference: API 570, Table 2 … Apply Class 3 rule & use the 25% value Show the work … 190 m² x 0.25 = 47.5 m² … or Answer C

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) 15. A piping system designed at 500 psi & 600°F is to be hydrostatically tested using the liquid content which is flammable. The pipe material is A-53B Seamless Sch 80 NPS 6. What is the hydrostatic test pressure if the test is conducted at 100°F or below? A) 750 psig

B) 794 psig

C) 812 psig

D) 867 psig

Answer = D … Reference: ASME B31.3 Table A-1 & Para. 345.4.2 … Use Formula Solution: Determine both St & S from A-1 Tables … St = 20,000 & S = 17,300 (St ÷ S = 1.156) 1.5 (500 … pressure) (1.156 … Rr = St/S = 1.156) = 867.05 = 867 psig Para. 345.4.2 (a) requires not less than 1-1/2 times design pressure. 500 x 1.5 = 750 Solution = 867 psi to compensate for the difference between design pressure test conditions and it must be noted that 867 exceeds the “minimum” of 1.5 times design or 750 psi in this case!!! 16. The minimum hold time for a Hydrostatic leak test per ASME B31.3 code is: A) 5 minutes B) 10 minutes C) 15 minutes Answer = B … Reference: ASME B31.3, Para. 345.2.2.a

D) 30 minutes

17. Determine the Corrosion Rate, correct Inspection Interval (from choices given) & MAWP of corroded pipe given the detailed information below and be sure to follow API 570 rules! Design pressure/temp = 500 psig/500°F for A106 Gr B Seamless NPS 10 STD wall Pipe, Measured Thickness in 2001 = .360, in 2006 = .330, in 2011 = .300, Corr. Rate = unknown A) Corrosion rate is 6 MPY, the inspection interval = 5 years, and the MAWP = 857 psi B) Corrosion rate is 5 MPY, the inspection interval = 10 years, and the MAWP = 864 psi C) Corrosion rate is 6 MPY, the inspection interval = 5 years, and the MAWP = 844 psi D) Corrosion rate is 6 MPY, the inspection interval = 5 years, and the MAWP = 867 psi Answer = C … API 570, Para. 7.2 & Table 4 Examples: When MAWP is recalculated, wall thickness used in calcs shall be actual thickness as determined by inspection (5.6 definition) minus twice* the estimated corrosion loss before the date of the next inspection (6.3.3). Step # 1: Determine corrosion rate  30 mils lost in 5 yrs (both LT & ST intervals) = 6mpy Note: Select greatest corrosion rate (LT or ST) after consultation with Corrosion Engineer Step # 2: Determine correct inspection interval! Use 5 years for a MAWP calculation Step # 3: Estimated corr. loss (ECL) in 5 yrs = 30 mils, & 2* x ECL = 60 mils (Para. 7.2) Step # 4: Utilize the correct formula & values per API 570 Table 4 for MAWP = 2SEt ÷ D, & use ASME B31.3 to find S = 18,900 (table A-1 value @ 500F), E = 1.0 (Table A-1B value for seamless) t = .240, because .300 minus twice the estimated loss in 5 yrs or .060 = .240 MAWP = 2 (18,900) (1.0) (.240) ÷ 10.75 (From API 574 pipe schedules) = See math below MAWP = 37,800 x .240 ÷ 10.75 = 9,072 ÷ 10.75 = 843.9 psi = 844 psi  Conclusion: This value of 844 psi exceeds design, therefore the 5 year interval is acceptable

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) 18. You are evaluating Charpy impact test results for piping material with a 0.236 in. thickness, and where the largest attainable Charpy V-notch specimen has a width along the notch of 0.157. At what temperature must Charpy testing be conducted? A) Design minimum temperature B) Not higher than design minimum temperature C) 15°F below MDMT D) 30°F below MDMT “C” … Reference: 323.3.4(b) … tricky … must use the “difference” between table values

Answer questions 19 through 21 below (PQR Review) Given: NPS 12 schedule 120 (1.00 in. thick), A-106-C, P No-1, Group 2 (C-Mn-Si Composition) Note: All test results were signed & accepted by Egyptian Mech. Testing Group (Babu B. Babu) Tensile Test specimen # 1 (full size 25mm) Results = 66,500 … Failure location = Base metal Tensile Test specimen # 2 (full size 25mm) Results = 69,900 … Failure location = Weld metal Guided Bend (side bend) specimen # 1 results = Pass … 3 mm slag in the weld area Guided Bend (side bend) specimen # 2 results = Pass … 2 mm crack in the weld area Guided Bend (side bend) specimen # 3 results = Pass … 3.5 mm incomplete fusion in weld area 19. The two tensile test values provided above were reviewed and found to be: A) Specimen # 1 & 2 are rejectable, both below the required tensile value in ASME IX B) Specimen # 1 is rejectable and # 2 is acceptable as per ASME IX C) Specimen # 1 is acceptable and # 2 is rejectable as per ASME IX D) Specimen # 1 & 2 are acceptable because Babu signed the report Answer: C … Apply QW-422 Table Value of 70 ksi & 5% under rule of QW-153 70,000 Table Value x .95 (5% rule for base metal failures) = 66,500 … Accept # 1 70,000 Table Value > 69,900 … Reject # 2 (no allowed reduction for weld metal failures) 20. The guided bend test results provided above were reviewed and: A) Specimen # 1 & 2 are acceptable, and specimen # 3 is rejectable as per ASME IX B) Specimen # 1 is rejectable, # 2 is acceptable, and # 3 is rejectable as per ASME IX C) Specimen # 1 is acceptable and # 2 is rejectable, and # 3 is acceptable as per ASME IX D) Specimen # 1 is rejectable, and # 2 is acceptable, and # 3 is acceptable as per ASME IX Answer: A … Apply QW-163 acceptance criteria allowing a 3mm maximum weld flaw size 21. Are the number of tensile test & guided bend test specimens adequate as per ASME IX? A) Yes, Per Table QW-451, the side bends may be substituted for face & root bends B) Yes, because only two specimens are required for each test, given the information above C) Both A & B are correct. The number of specimens is acceptable even if the results are not D) No, because the requirements & notes of Table QW-451 have not been met Answer: D … Apply QW-451 Table Value for 1 inch material & 4 side bends are required

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams) 22. Essential variables are those in which a change, as described in the specific variables, is considered to affect the mechanical properties of the weldment, and shall require requalification of the WPS. Nonessential variables are those in which a change, as described in the specific variables, may be made in the WPS without requalification. All WPS & PQR points must never be left blank (even when a non-essential variable). Supplementary essential variables are: A) Required for metals only when other code Sections specify notch-toughness tests B) In addition to the essential variables for each welding process when impact tests are required C) The same as essential variables, depending upon the welding process utilized D) Both A & B are correct Answer = D … QW-251.2 & 251.3 23. Regarding hole-type Image quality Indicator (IQI) placement & location, IQIs must be placed on the source side of the film. However, where inaccessibility prevents hand placement of IQI(s) on source side, IQI(s) shall be placed on film side in contact with the part being examined. What additional requirements exist regarding this placement of the IQI on the film side? A) Lead letter “F” shall be placed adjacent to or on IQI(s) B) Lead letter “F” shall not mask any essential hole where hole type IQIs are used C) Both A & B are correct D) None of the above is correct Answer = C … Reference: T-277.1 & T-277.1(b) 24. The “code user” must have a Quality Program that details how NDE personnel are qualified and certified. Qualifications must be in accordance with SNT-TC-1A or CP-189. What is meant by the term “code user” as it relates to a Quality Program for NDE training as per ASME V Code?

A) Manufacturer, fabricator, or Installer performing NDE B) Employer of the NDE personnel C) Any organization conducting NDE to the requirements of ASME V D) None of those listed above Answer = C … Reference: Art. 1, T-120(h) & Note 4 25. What is the essential hole & hole type designation (assume a source side IQI was used) for 4 inch NPS Sch 40 pipe weld in the “as welded” condition. Apply code rules and use the Table! A) Essential hole is a 2T, with a hole type designation of 10 B) Essential hole is a 2T, with a hole type designation of 12 C) Essential hole is a 2T, with a hole type designation of 15 D) None of the above are acceptable Answer = C … Solution Step # 1: Use API 574 Table, Sch 40 NPS 4 = .237 (6mm) Solution Step # 2: Apply the rule for T-276.2(a) and proceed to Step # 3 … add reinforcement Solution Step # 3: Use ASME B31.3, Table 341.3.2 for reinforcement = 1/16 in or .062 (1.5mm) Solution Step # 4: Add .237 + .062 = .299 inches … Metric = 6 mm + 1.5 mm = 7.5 mm References: API 574, B31.3 table 341.3.2 value “L”, T-276.2, T-276.2(a) & Table T-276

2 RULES EXIST, WELDS WITH & WITHOUT REINFORCEMENT!!

Q & A for API 570 Practice Exam Open Book (For all 2011 Exams)

Fig. 328.5.2B Typical Details for Double-Welded Slip-On Flg Attachment Welds 26. What are the minimum required fillet weld sizes (front & back welds) for a double welded slip on flange per Fig.328.5.2B using Detail (1), given a 3 NPS Sch 40 pipe & class 150 rated slip-on welding flange? A) 5.6 mm for the front weld (ID) & 8.6 mm for the back weld (OD) B) 6.0 mm for the front weld (ID) & 7.8 mm for the back weld (OD) C) 6.0 mm for the front weld (ID) & 6.0 mm for the back weld (OD) D) 5.6 mm for the front weld (ID) & 7.8 mm for the back weld (OD) 574 pipe sch  T = 5.59 mm … Note that you must use ASME B16.5 Tables Flange Hub T  See B16.5 Table 8  X* – B* ÷ 2 = 108 – 90.7 = 17.3 ÷ 2 = 8.65 mm * X & B values in Table 8 (Class 150 Flg dimensions) on Pg 71  See Columns 5 & 11 Front weld size (ID near the flange face) = lesser of T or 6mm = 5.59 mm = D Back weld size (OD on back side) = 1.4 x t = lesser of 7.83 mm or 8.65 = 7.83 mm = D

27. What is the minimum required fillet weld size for a socket weld on a NPS 1 Sch 160 Seamless A-106 Gr B pipe, design @ 750 psi & 400°F? (Fig.328.5.2C of ASME B31.3) A) .024 inches

B) .130 inches

C) .187 inches

D) .125 inches

Solve for t … D = 1.315 in (API 574 tables), S = 20,000 (A-1 tables) PD = 750 x 1.315 = 986.25 = 986 … SE = 20,000 x 1 = 20,000 … PY = 750 x .4 = 300 … W (N/A) t = 986 ÷ 2 (20,000 + 300) = 986 ÷ 40,600 = .02428 = .024 inches Cx = 1.25 t = 1.25 x .024 = .030 inches  But not less than 3 mm or .125 in. (structural minimum t)

Answer = .125 inches = 99.9% the time, Structural minimum rules!

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 1. An API Authorized Piping Inspector must have the required education, training and experience qualifications related to the design, construction, repair and inspection of piping systems. Authorized piping inspectors shall be qualified & certified in accordance with what code requirement? A) API 570 Annex A C) API 570 Piping Inspector Certification Program Answer = A (API 570, Para. 4.2 & Appendix A)

B) API 570 Annex B D) API 570 Annex C

2. An API Authorized Inspection Agency may be defined as any of these below except: A) Inspection organization of the jurisdiction in which the piping system is used B) An owner or user of piping systems who maintains an inspection organization for activities relating to piping systems intended for sale or resale C) An independent inspection organization employed by or under contract to the owner or user of piping systems that are used only by the owner or user and not for sale or resale D) An independent inspection organization licensed or recognized by the jurisdiction in which the piping system is used & employed by or under contract to the owner or user Answer = B (API 570, Para. 3.1.6 Definition) … not intended for sale or resale 3. A Repair Organization may be defined as any of the following EXCEPT: A) An owner or user of piping systems who repairs or alters his equipment per API 570 B) Contractor with qualifications acceptable to an owner or user of piping systems and who makes repairs or alterations in accordance with API 570 C) One who is authorized by, acceptable to, or otherwise not prohibited by a jurisdiction and who makes repairs in accordance with API 570 D) A Group outside of a Jurisdiction that travels into a new location and does Repair Work Answer = D (API 570, Para. 3.1.79 Definition) 4. Who is responsible for developing, documenting, implementing, executing, and assessing piping inspection systems and inspection procedures that will meet the requirements of the API 570 Inspection Code? A) Owner/user organization B) Contractor with qualifications acceptable to owner/user C) Either A or B above D) Inspection Agency Answer = A (API 570, Para. 4.3.1.1) 5. API 570 Authorized Piping Inspectors are responsible to the Owner/User for all of the following EXCEPT: A) Determining if API 570 requirements for inspection/examination/testing have been met B) Being directly involved in all inspection activities, including any examiners assisting him C) Evaluating & accepting (or rejecting) all examination results provided by any examiner D) Settle all nonconformances by having repairs done quickly based on the inspector’s findings Answer = D (API 570, Para. 4.3.4)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 6. Each owner/user should provide specific attention to the need for inspection of piping systems that are susceptible to specific types and areas of deterioration. These include all EXCEPT: A) Injection points, deadlegs, Corrosion under insulation (CUI), Soil-to-air (S/A) interfaces B) Service specific & localized corrosion, Erosion & corrosion/erosion, Corrosion under linings C) Environmental cracking, Fatigue cracking, Creep cracking, brittle fracture & Freeze damage D) Contact point corrosion, Corrosion under deposits & Low temperature Corrosion Answer = D (API 570, Para. 5.4.2) … Obviously, Low temperature corrosion is not listed 7. When an owner/user chooses to conduct RBI assessment of piping system, assessments must include a systematic evaluation for all items listed below EXCEPT: A) Likelihood of failure based on forms of degradation reasonably expected in a given service B) Consequence of failure of the piping system in a given service C) In accordance with API 580 and detailed methodology per API 581. D) In accordance with API 579 and detailed methodology per API 581. Answer = D (API 570, Para. 5.2 … Second Paragraph) 8. When designating an injection point circuit for purposes of inspection, it may be appropriate to extend the circuit to the next piece of pressure equipment. However, API 570 recommended upstream limits of an injection point circuit for inspection purposes is (Assume a 14 NPS line): Problem: An injection point exists on a 14 NPS pipe … What is the upstream limit? A) 42 inches, because the greater of 12 inches or 3D is required B) 64 inches, because the greater of 24 inches or 4D is required C) 70 inches, because the greater of 36 inches or 5D is required D) This limit depends upon the service and must be a minimum of 24 inches Answer = A (API 570, Para. 5.5.9 & Figure 1) … Don’t forget the upstream rule … 12 inches or 3 pipe diameters, whichever is the greater … most guys miss this question 9. Thickness measurement inspection on hot surfaces must apply a 1% temperature correction factor for every 100°F when the surface temperature measures greater than: A) 100°F B) 125°F Answer = C (API 570, Para. 5.7.1)

C) 150°F

D) 212°F

10. External visual inspections are used to identify all of the following except: A) Corrosion (at supports & at interface corrosion points), Coating/Insulation deterioration. B) Support Condition (Inadequate supports, loose supports, spacing (gaps) not having bearing C) Leaks (Flanged joints, Steam tracing, existing clamps, valve stems, seal welds, threads, etc) D) Condition of externally accessible surfaces after any piping flanges are opened Answer = D (API 570, Para. 5.4.3 … last sentence … & Appendix D Checklist of API 574) Note: Answer “D” is considered an “internal” inspection

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 11. Issues to consider when assessing the quality of existing piping system welds are: A) Original fabrication inspection acceptance criteria & extent/magnitude/orientation of flaws B) Length of time in-service, operating versus design conditions, Stresses (residual & thermal) C) Potential for fatigue loads (mechanical & thermal) & potential for impact or transient loads D) All of the above including potential for environmental cracking and the weld hardness Answer = D (API 570, Para. 5.10) 12. Long-term and short-term corrosion rates should be compared to see which results in the shortest remaining life as part of the data assessment. Who is responsible to select the corrosion rate that best reflects the current process? A) Piping Engineer after consultation with the Corrosion Engineer B) Authorized Inspector after consultation with a Corrosion Engineer C) Authorized Inspector determines the rate that best reflects the current process D) Authorized Piping Engineer determines Corrosion Rate based on Inspector’s recommendation Answer = B (API 570, Para. 7.1.1) 13. The owner/user or the inspector may establish inspection intervals and the thickness measurements should be scheduled based on all of the following EXCEPT: A) Not more than half the remaining life as determined from calculated corrosion rates B) At maximum intervals recommended in Table 2 for a given Class of piping C) Both A & B above are correct, and any of these values may be used D) The lesser value of A or B above should be selected. Answer = B (API 570, Para. 6.3.3) 14. Proper safety precautions shall be taken before any piping system is opened & before some types of external inspections. In general, all the following safety precautions apply except: A) Procedure for segregating piping systems, installing blanks (blinds) & testing tightness B) Opened piping should be isolated from all sources of harmful liquids, gases, or vapors and purged to remove all oil and toxic or flammable gases and vapors. C) Before starting inspection, inspection personnel should obtain permission to work in the vicinity from operating personnel responsible for the piping system, & wear any PPE for work. D) NDE equipment meets OSHA safety requirements for hazardous electrical equipment. Ans = D (570, Par. 5.3.1 & 5.3.2) … NDE Equip to meet operating facility safety reqmts Degree of difficulty = 10/10 with this question!!! 15. The owner/user shall maintain appropriate permanent and progressive records of each piping system covered by API 570 for all of the following items EXCEPT: A) Piping system service, classification, identification numbers, & inspection intervals B) Documents recording details of testing (inspector/examiner, date, types of testing, etc) C) Results of thickness measurements & other tests, inspections, repairs (temp/permanent), alterations, or rerating. Design information and piping drawings may be included D) Fitness for service assessment plans and strategies Answer = D (API 570, Par. 7.6.1)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 16. All repair & alteration work must be done by a ___________ (a) organization as defined in Sect. 3 of API 570 and must be authorized by the __________ (b) prior to its commencement. Authorization for alteration work to a piping system may not be given without prior consultation with and approval by, the _________ _________ (c). The ________ (d, same answer as b above) will designate any inspection hold points required during the repair or alteration sequence. Key elements above have been left blank, so select the correct response below. A) Owner/user (a), Examiner (b & d), Authorized Inspector (c) B) Repair (a), Examiner (b & d), Authorized Inspector (c) C) Repair (a), Inspector (b & d), Piping Engineer (c) D) Repair (a), Inspector (b & d), Corrosion Specialist (c) Answer = C (API 570, Par. 8.1.2) 17. Rerating piping systems by changing MAWP & / or temperature rating may be done only if all of the following requirements below have been met except (Select answer that is incorrect): A) Piping system uses same pressure relieving device settings if capacity is not affected B) Calculations are performed by the piping engineer or the inspector C) Rerating is acceptable to the inspector or piping engineer D) All piping system components are adequate for the new combination of pressure/temperature Answer = A (API 570, Par. 8.3.e) … Relief must be reset at the appropriate new pressure 18. For existing insulated lines that are being pressure tested after repairs, rerating, or alteration, it is not necessary to strip insulation on all existing welds. However, what actions should be taken in lieu of stripping away of all of the insulation for the test? A) Pressure test with shorter hold times & perform a close pressure gauge examination B) Pressure test with longer hold times & observe pressure gauges carefully during the test C) Check the line carefully at all exposed areas looking for small leaks D) Pressure test with longer hold times & match mark pressure gauges before leaving the site Answer = B (API 570, Par. 8.2.6) 19. The API-570 Piping Inspection Code applies to: A) Inspection, rating, repair, & alteration procedures for piping systems already in-service B) May be used for modification or addition of new piping systems constructed per the code C) May be used when in conflict with any prevailing regulatory requirements D) Pressure vessels, heaters, or heat exchanger internal or external piping Answer: A (API 570, 1.1.1) 20. API-570 Piping Inspection Code is intended for use and may be used by all of these EXCEPT: A) Those in the Refinery Industry B) Those in the Chemical Process industry C) Those in the Pharmaceutical Industry D) Whoever wants to use it and has an Inspector Answer: D (API 570, 1.2.1)  Authorized Inspection, Engineers, Repair Org, etc)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 21. Soil to air interface zone is generally located “where” on a piping system? A) 12 inches below to 6 inches above grade B) 12 inches below and 12 inches above grade C) Pipe running parallel to and less than 300 mm above the soil line D) Both A & C are correct Answer: A (API 570, 3.42) … Always apply 6 inch rule for pipe parallel & close to grade 22. Loss of ductility/notch toughness in susceptible low alloy steels, such as ≤ 2-1/4 Cr is due to: A) Prolonged services at low temperature (-20 F) B) Prolonged service at high pressure and temperature C) Prolonged service at high temperature (700 F – 1070 F) D) Prolonged operation at high cyclical service Answer: C (API 570, Para. 3.44) … definition of Temper Embrittlement 23. ______ points are areas defined by a circle having a diameter not greater than 2 inches for a line diameter not exceeding 10 inches or not greater than 3 inches for larger lines. A) Hold B) Examination C) Witness D) Area Answer: B (API 570, Para. 3.1.20) 24. Before performing any of the required inspections, inspectors shall familiarize themselves with all of the following EXCEPT: A) Review piping system prior inspection results B) Review previous piping system repairs C) Review previous history of the piping system D) Review previous Inspection Plan Answer: D (API 570, 5.3.5)  Review the current Inspection Plan) 25. Injection points are sometimes subject to accelerated corrosion from normal or abnormal operating conditions, and because of this injection points are treated as: A) A separate inspection circuit needing thorough inspection on a regular schedule B) A part of the circuit that needs to be inspected regularly per API 570 requirements C) Both A or B above are correct D) None of these are correct Answer: A (API 570, 5.4.2)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 26. Examples of environmental cracking include all of the following except: A) Chloride SCC of Austenitic SS B) Polythionic acid SCC of sensitized austenitic alloy steels C) Temper Embrittlement & Creep B) Caustic SCC (caustic embrittlement) Answer: C (API 570, 5.4.1.1) 27. Deadlegs include all of the following EXCEPT: A) Lines with one end blanked B) Control valve bypass lines C) Relief valve inlet and outlet header piping D) Sample points, drains, bleeders, and instrument connections Answer: B (API 570, Para. 3.1.16) 28. Typical sources of moisture that cause corrosion under insulation (CUI) include: A) Breaks, holes or sealant deterioration in insulation B) Rain, water leaks, condensation and deluge systems C) Cooling Towers located downwind from Plant Prevailing winds D) Both “A” and ”B” are correct Answer: B (API 574) … sources, not causes (If causes for CUI … then answer = A) 29. Carbon steel piping systems, including those insulated for personnel protection, are susceptible to CUI when operating at temperatures between: A) 25°F & 212°F B) -4°C & 100°C C) Both “A” & “B” D) None of the above Answer: D (API 574 & 570 Table 3) … 250°F & 120°C, not 212°F & 100°C 30. Regarding reporting & records, Computer programs are particularly useful for: A) Storing thickness readings B) Calculating short and long-term corrosion rates, retirement dates, MAWP, and reinspection intervals on a test-point by test-point basis. C) Highlighting areas of high corrosion rates & circuits overdue for inspection & circuits close to retirement thickness D) All of these Answer: D (API 570, Para. 7.6) … Fitness for Service Assessment docs are per API 579 31. Fasteners should extend completely through their nuts. Any fastener failing to do so is considered acceptably engaged if the lack of complete engagement is not more than: A) One thread B) Two threads Answer: A (API 570, Para. 5.12)

C) flush with nut face

D) None of these

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 32. When reviewing RT film, a darkened perfectly straight line can be seen in the very center of the root pass (lightest area). The length of the line is about 75mm long. It is likely which type of discontinuity? A) Incomplete penetration B) Incomplete fusion C) Wormhole porosity D) Crack Answer: A (API 574 & NDT General Knowledge) … See RTFI presentation in e-Library 33. Which of the following welding imperfections can the MT yoke technique detect? A) Surface cracks (welds, base metal) open to surface allowing detection by flux leakage B) Surface imperfections (laps, seams, delaminations, etc) open to the surface C) Both “A” & “B” are correct. MT can detect linear imperfections open to the surface D) All of the above are correct, and even shallow subsurface imperfections may be detected Answer: D (API 574 & NDT General Knowledge) 34. The transmitted film density through the radiographic image of the body of the appropriate hole IQI was measured with a densitometer at 2.8 in the area of interest. What is the acceptable range of density in the area of interest for the film (assume no shims were used with the IQI)? A) 2.4 to 3.6 (2.38 to 3.64), applying the -15% +30% rule B) 2.0 to 4.0 if a Gamma ray source was used C) 1.8 to 4.0 if an X-Ray source was used D) Both B & C are correct Answer = A … Reference: T-282.2(a) … we are not asking what is acceptable density range 35. Which of the following types of imperfections cannot be detected by radiography? A) Cracks B) Incomplete Penetration C) Slag or Porosity D) Laminations Answer = D … ASME V, Art. 1, Table A-110 (RT Col. Product Form & weld imperfection) 36. Which of the following imperfections may appear as a dark round spots using radiography? A) Cracks and Incomplete Penetration B) Porosity or Burn through C) Slag and Incomplete fusion D) Laminations Answer = B … General NDE knowledge & RTFI Presentation in E-Library Folder # 27 37. Which of the following imperfections may appear as a light white spot using radiography? A) Cracks B) Incomplete Penetration C) Porosity D) Tungsten Inclusion Answer = D … General NDE knowledge & RTFI Presentation in E-Library Folder # 27

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 38. API 578 gives rules for Alloy Verification for: A) Carbon steel piping material for old or new piping. B) Alloy steel piping materials, for old or new piping. C) Carbon steel materials used for old piping only. D) Alloy steels used for old piping only. Answer: B (API 578, Para. 1.1) 39. ASME IX Mechanical Tests (Tension Tests) are used to determine the: A) Ultimate strength of groove-weld joints B) Degree of soundness and ductility of groove-weld joints C) Notch toughness of the weld D) None of the above Answer = A … QW-141.1 40. ASME IX Mechanical Tests (Guided-Bend Tests) are used to determine the: A) Ultimate strength of groove-weld joints B) Degree of soundness and ductility of groove-weld joints C) Notch toughness of the weld D) None of the above Answer = B … QW-141.2 41. ASME IX Mechanical Tests (Charpy Impact Tests) are used to determine the: A) Ultimate strength of groove-weld joints B) Degree of soundness and ductility of groove-weld joints C) Notch toughness of the weld D) None of the above Answer = C … QW-141.3 Category D Fluid Service is a service where: A) Fluid handled is nonflammable, nontoxic, & not damaging to human tissues B) Design gage pressure does not exceed 1035 kPa (150 psi) C) Design temperature is from −29°C (−20°F) through 186°C (366°F) D) All of the above are correct Answer: D (ASME B31.3 Definitions … Fluid Service) 43. API 574 External Inspection Checklist for insulation covers all the following except: A) Damage/penetrations in insulation B) Missing jacketing & insulation C) Liner deterioration D) Banding (broken/missing) Answer: C (API 574, Appendix A External Inspection Checklist)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 44. The basic types of valves include all of the following except: A) Gate / globe

B) Plug / Ball

C) Diaphragm / Butterfly D) Check / Slip

Answer: D (API 574, Para. 4.3.1) … Correct is “slide” … not slip 45. Valves are made in standard pipe sizes, materials, body thickness, and pressure ratings that permit them to be used in any pressure-temperature service in accordance with ASME ________ or API Standards 599, 600, 602, 603, 608, or 609, as applicable. A) ASME B16.24

B) ASME B16.20

C) ASME B16.47

D) ASME B16.34

Ans: D (API 574, Para. 4.3.1) … B16.5 (flanges) & B16.34 (valves) cover pressure ratings

A

B

C

46. Illustrations (API 574) above identify valve types A, B & C respectively (in order): A) Diaphragm … Slip … Check B) Gate … Ball … Diaphragm C) Gate … Globe … Check D) Gate … Globe … Butterfly Answer: D (API 574, Section 4 Illustrations)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams)

A

B

C

D

47. Illustrations (API 574) above identify the fittings A, B, C, & D respectively (in order): A) Reducer, Tee, Coupling, Special Tee C) Reducer, Wye, Union, Special Tee Answer: D (API 574, Section 4 Illustrations)

A

B) Reducer, Tee, Union, Cross D) Reducer, Wye, Union, Cross

B

C

48. In illustrations from API 574, identify the flange facings A, B, & C respectively (in order): A) Raised Face (RF) … Flat Face (FF) … Ring Type Face (RTF) B) Flat Face (FF) … Raised Face (RF) … Ring Type Joint (RTJ) C) Raised Face (RF) … Ring Type Joint (RTJ) … Flat Face (FF) D) Raised Face (RF) … Flat Face (FF) … Ring Type Joint (RTJ) Answer: C (API 574, Section 4 Illustrations) 49. On-stream inspection can reduce downtime by: A) Extending process runs by assuring piping conditions are suitable for continued operation. B) Permitting fabrication of replacement piping before a shutdown. C) Eliminating unnecessary work and reducing shutdown personnel requirements D) All of the above are correct Answer: D (API 574, Section 7.2) 50. Erosion is defined as the removal of surface material by the action of numerous individual impacts of solid or liquid particles, or cavitation. It can be characterized by grooves, rounded holes, waves, and valleys in a directional pattern. A combination of corrosion and erosion known as corrosion/erosion results in significantly greater metal loss than can be expected from corrosion or erosion alone. Corrosion/erosion occurs at: A) High velocity and high turbulence areas B) Downstream of control valves, orifices, and pump discharges C) At any point of flow direction change, such as the outside radius of elbows D) All of the above Answer: D (API 574, Section 6.3.6 & API 571)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 51. Which of the following statements are correct? A) Soil resistivity is a measure of resistance used by drilling operations in oil exploration and it has no connection with corrosive soil B) Lower soil resistivity indicates less corrosive soil C) Soil resistivity has nothing to do with corrosiveness of soil because soil corrosion depends on the amount of corrosive chemicals present in the soil D) Higher soil resistivity indicates less corrosive soil Answer: D (API 570, 9.1.4 on Soil Resistivity) HIGHER soil resistivity indicates LESS corrosive soil … and therefore, LOWER soil resistivity will indicate MORE corrosive soil 52. Who shall be responsible to the owner-user for determining that the requirements of API 570 for inspection, examination and testing are met. A) Engineer

B) Inspector

C) Repair Organization

D) Operating Personnel

Answer: B (API 570, Para. 4.3.4) … Authorized Piping Inspector = Inspector in API 570) 53. Which of the following are mandatory requirement(s) for re-rating a piping system? A) Calculations must be performed by the piping engineer or the inspector B) Current insp. records shall be reviewed to verify that piping system is satisfactory for the proposed service conditions & an appropriate corrosion allowance has been provided C) The piping system is checked to affirm that the required pressure relieving devices are present, are set at appropriate pressure & have appropriate capacity at the set pressure D) All of the above Answer: D (API 570, 8.3) 54. After completion of alterations or major repairs, a pressure test is: A) Normally required B) Not required or sometimes required C) Required if deemed necessary by the Examiner D) Both “A” and “C” Answer: A (API 570, 8.2.6 First Paragraph) … Normally required after alterations 55. Which of the following are areas susceptible to CUI given the following information? Given Information: Carbon Steel piping system operating in the temperature range of 25°F to 250°F is located near steam vents and a cooling tower, and is 100% insulated! A) The entire insulated line in this piping system is susceptible to CUI B) Those areas exposed to the steam vents are susceptible to CUI C) Only those areas directly exposed to cooling tower mists are susceptible to CUI D) None of these Answer: A (API 570, 5.3.3.1)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 56. Which of the following conditions have the “highest potential” to create an emergency should a leak occur in a Class 1 piping system containing flammable fluids? A) Rapid vaporization on leakage B) Slow vaporization on leakage C) No significant vaporization D) None of the above Answer: A (API 570, 6.2.1) 57. Any welding conducted on piping components in operation must be done in accordance with this document, and Inspector shall use as a minimum “Suggested Hot Tap Checklist” contained in this document for hot tapping performed on piping components. Which of the following documents referenced in API 570 addresses hot tapping? A) B) C) D)

API 2201 API 574 ASME B31.3 None of the above

Answer: A (API 570, 8.2) 58. The preferred method for inspecting piping coating for defects before burial is: A) Visual inspection only C) Magnetic Particle

B) Holiday Survey D) Liquid Penetrant

Answer: B (API 570, 9.1.3) 59. Which of the following API 570 cases does NOT require the approval from the piping engineer and is not considered an “alteration” as defined by API 570? A) B) C) D)

Changing out a damaged flange with a new flange of the same rating and material Adding a small bore attachment (branch connection) not requiring reinforcement Changing a branch connection (no required reinforcement) to one requiring a repad Both “A” and ”B” above are not alterations & do not require piping engineer approval

Answer: D (API 570, 8.1.1 & Definition in Para. 3.1) … HIGHLIGHT YOUR API 570 60. Fillet welded patches (lap patches) shall be designed by: A) B) C) D)

Corrosion Engineer B) Inspector C) Piping Engineer D) Repair Organization.

Answer: C (API 570, Para. 8.2.3)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 61. Guided bend tests represent what qualities in a weld? A) Ductility

B) Strength

C) Soundness

D) Both ductility & soundness

Answer: D (ASME IX, QW-141.2) 62. A Procedure Qualification Record (PQR) is a document that can be changed (revised). This statement (according to ASME IX requirements) is: A) True, because editorial corrections or addenda to the PQR are allowed B) False, because changes to the PQR are not permitted C) True, but this depends on the company policy D) True, but the depends on the client of the company Answer: A (ASME IX, QW-200.2c) … Please highlight, review & understand QW 200.2c 63. The following data is available to compute remaining life of a piping circuit: Minimum required thickness = 0.422 inches Actual thickness measured = 0.512 inches Corrosion rate = 0.018 inches/year or 18 mpy The Remaining life for this circuit will be: A) 5.0 years

B) 4.5 years

C) 6.0 years

D) None of the above

Answer: A (API 570, Para. 7.1.1) … .512 - .422 = .090 ÷ .018 = 5 years 64. The WPS and the PQR are used to determine: A) B) C) D)

If the welder is able to deposit sound weld metal If the welder is able to operate welding equipment The welder’s ability to produce welds that are radiographically free of defects If a weldment has the required properties for the intended application (strength, ductility)

Answer: D (ASME IX, Introduction, Fifth Paragraph) … Please highlight & review 65. Which of the following penetrant systems is generally considered the least sensitive? A) Water washable – visible dye B) Solvent removable – visible dye C) Water washable – fluorescent dye D) Post-emulsification – visible dye Answer: A (Experience & General NDT Knowledge) … Also … Flushing the surface with a solvent cleaner after penetrant application is prohibited (T673.3 Bold Letters)

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 66. To verify satisfactory PWHT, what test is conducted per ASME B31.3 requirements? A) B) C) D)

Radiography Ultrasonic Hardness survey None of these

Answer: C (ASME B31.3, 331.1.7 … First sentence) 67. In qualifying a procedure for Visual Examination, a defect of what minimum width shall be used? A) B) C) D)

1/16 inch 1/8 inch 1/32 inch None of the above

Answer: C (ASME V, T-921.3) … Please highlight & review 68. Magnetic Particle examination methods can detect which of these discontinuities? A) B) C) D)

Deep sub-surface cracks Surface cracks Both “A” & “B” None of these

Answer: B (ASME V, Art. 7, T-720) … Shallow sub-surface cracks & other discontinuities may be found using MT … Many miss this question and answer “C” 69. API 578 gives rules for Alloy Verification for: A) B) C) D)

Carbon steel piping material for old or new piping Alloy steel piping materials, for old or new piping Carbon steel materials used for old piping only Alloy steels used for old piping only

Answer: B (API 578, 1.1) 70. Regarding the thickness measurement of small diameter piping NPS 1 & smaller, the best NDT technique (preferred method) to use is: A) Ultrasonic thickness technique B) B) Radiographic profile technique C) Either A or B is okay D) None of the above Answer: B (API 570, Para. 5.6) … Reason … The effects of “doubling” occur during UT

Q & A for API 570 Practice Exam Closed Book (For all 2011 Exams) 71. For recalculating Piping Circuit MAWP, what computation determines wall thickness? A) B) C) D)

Actual thickness as determined by inspection Actual thickness minus estimated corrosion loss before the next inspection date Actual thickness minus twice the estimated corrosion loss before the next inspection date None of the above

Answer: C (API 570, 7.2) 72. A typical injection point pipe circuit starts upstream of the injection point (how far): A) B) C) D)

12 inches 12 inches or 2 times pipe diameter, whichever is greater 12 inches or 3 times pipe diameter, whichever is lesser 12 inches or 3 times pipe diameter, whichever is greater

Answer: D (API 570, 5.3.1) 73. What term best describes a physical change in a component that has design implications affecting pressure containing capability or flexibility of a piping system beyond the scope of the original design. A) Rerating

B) Repair

C) Alteration

D) Assembly

Answer: C (API 570, Para. 3.1 … Definition) … A guaranteed test question 74. Who has responsibility to the owner/user that includes the supply of materials, equipment, quality control and workmanship necessary to maintain and repair piping systems per API 570? A) Repair organization

B) Inspection Agency

C) Contractor

D) Piping Engineer

Answer: A (API 570, Para. 4.3.3) 75. Injection points are sometimes subject to accelerated corrosion from normal or abnormal operating conditions. Because of this, how must they be treated? A) Injection points may be treated as a separate inspection circuit B) Injection points are treated as any other piping in the plant C) Injection points require no special treatment D) None of the above Answer: A (API 570, 5.3.1)