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CLOSED BOOK QUESTIONS FOR API 575
Note: try these questions after read API 575 once; some of following questions will be as open book. These questions are prepared to under stand each and every section of the API 575.
1. What old code used to build rivet tanks?
a. API Spec 12A b. API 653 c. API 650 d. API 575
2. What code covers the safety precautions of entering a tank?
a. API 653 b. API 575 c. API 2015 d. API 2000 e. API Spec 12A
3. What code covers cathodic protections of tanks?
a. API 653 b. API 651 c. API 652 d. API 575
4. What code covers tank lining?
a. API 653 b. API 651 c. API 652 d. API 575
5. What code covers tank venting?
a. API RP 12R1 b. API Std 2015 c. API 653 d. API Std 2000 e. API Std 2006
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6. What code covers design of low-pressure tanks?
a. API 650 b. API 620 c. API 653 d. API 575
7. When taking UT thickness readings, it is recommended to use digital meter that also has a ___________________
a. Dual-element b. Trace display c. Digital output d. Transducer
8. Dual-element transducer may give a false reading when the material thickness is less than __________ inch.
a. 0.05 b. 0.5 c. 0.1 d. 0.001
9. A Dual element transducers on a digital UT meter can effectively measure thickness between: ____________ inch.
a. 0.05 – 0.10 b. 0.50 – 5.0 c. 0.05 – 1.0 d. 0.005 – 5.0
10. Which type of UT transducer is best for small diameter deep pits?
a. Single element transducers b. Dual element transducers c. Large diameter transducer d. Transducers made with pure quartz
11. Which of the statement is correct, when UT thickness checking over a paint or coating?
a. For such case Dual-element transducer will give correct thickness of steel. b. For such case single crystal transducer will give false reading. c. Epoxy coatings have a velocity approximately half that of the steel, so that UT tool will read the
epoxy coating thickness as twice its actual thickness by Dual element transducer. d. All of the above.
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12. For coated tanks that have coatings that vary in thickness, which type of UT transducer is best?
a. Single element transducers b. Dual element transducers c. Large diameter transducers d. Transducers made with pure quartz
13. When performing a UT scan, the scans should overlap by __________ of the transducer diameter.
a. 100% b. 10% c. 20% d. 5%
14. When performing a UT scan, a large diameter transducer may miss ________ diameter deep pits.
a. Small b. Uneven c. Even d. Large
15. UT shear-wave is primarily used in tanks to find defects in _________ joints.
a. Butt welded b. Groove welded c. Lap welded d. Corner
16. Ability to detect following are primary advantage of using the magnet-flux floor scanner, but not this one.
a. Even small size of under side pitting. b. Topside pitting. c. Underside corrosion. d. Holes on the tank floor.
17. When using a magnet-flux scanner to inspect a tank floor, indications found are generally “proved-up” using __________.
a. Close monitoring by inspector. b. Ultrasonic examination. c. Further investigation by other tools. d. All of the above.
18. When the product temperature in a tank increases, the vapor pressure of the product _______.
a. Decrease b. No change c. Increases d. Small decreases
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19. While in operation, which tank type roof is supported by internal members?
a. Cone roof b. Dome roof c. Floating roof d. Umbrella
20. What is the primary reason(s) for using floating roof?
a. To minimize vapor space. b. To minimize time of fill and empty. c. To maximize outlet pressure. d. To prevent from contamination by external impurities.
21. Which type of external floating roof is the most susceptible to sinking?
a. Cone roof b. Pan type c. Annular-pontoon d. Double deck.
22. Which type of external floating roof is the least susceptible to sinking?
a. Cone roof b. Pan type c. Annular-pontoon d. Double deck
23. The most common type of floating roof seal are the __________.
a. Rubber seal b. Tube type seal c. Gasket seal d. Mechanical seal
24. When are internal floating roof tanks used? Where liquid _________.
a. Vaporization is more. b. Level is more. c. Vaporization is less. d. Level is less.
25. Low-pressure storage tanks are those with a design from ___________ Psig. a. 5 to 50 b. 2.5 to 15 c. –5 to 15 d. 5 to 25
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26. Low-pressure storage tanks are normally used for products that have a high _________ pressure.
a. Vapor b. Product c. Liquid d. Internal
27. For pressure above ________ psig, the hemispheroidal, spheroidal, and nodded spheroidal tanks are commonly used.
a. 2.5 b. 5 c. 10 d. 15
28. These type of tanks are usually built in areas where large snowfalls or rainfalls might sink an open top-floating roof.
a. Cone roof. b. Both fixed roof and an internal floating roof. c. Highly corrosive resistant roof structure. d. External floating roof.
29. Tank pads with cinders that contain __________ compounds become corrosive when wet.
a. Water. b. Product c. Sulfur d. Alkaline
30. These items in a sand pad that may cause bottom-side corrosion, but not this one?
a. Clay b. Wood c. Gravel or crushed stone d. Fine dust
31. Causes of severe external corrosion at the bottom of the lower shell course are _______ .
a. When soil movement has raised the grade level to cover lower portion of the shell b. When external insulation wicks up ground water c. When damaged or improperly sealed openings around nozzles and attachments allow water
ingress. d. All of the above
32. Small depressions in the roof are susceptible to ___________ corrosion.
a. Atmospheric b. Localized c. External d. All of the above
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33. Concentration cell corrosion may occur in the many niches of ____________ tanks.
a. Low pressure b. Riveted c. External floating d. Internal floating
34. What metallurgy is primary used when constructing crude oil tanks?
a. Carbon steel b. Stainless steel c. Alloy steel d. All of the above
35. These are common vapors that corrosion in a tank’s vapor space, but not this one?
a. Oxygen b. Water vapor c. Hydrogen sulfide vapor d. Any combination of above e. None of the above.
36. Generally in the liquid portion of a tank, internal corrosion is worse at the ______.
a. Bottom of tank b. Top of tank c. Welds d. Shells
37. What type of tank failure results in a sudden loss of the product?
a. Crack b. Brittle fracture c. Full weld crack d. When product spill out from the tank
38. The most likely points for cracks to occur are _________.
a. At the bottom to shell connections b. Around nozzle connection c. At manholes d. Around rivet holes e. All of the above
39. What welds are most susceptible to cracking in a hot tank?
a. Corner weld b. Lower shell to sketch plate weld c. Fillet weld d. Bottom weld
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40. What is the most susceptible to cracking in a large diameter tank?
a. Corner weld b. Lower shell to sketch plate weld c. Fillet weld d. Bottom weld
41. What is the most likely problem when there is excessive uniform settlement?
a. Over stress in nozzle attachments. b. Crack in shell plates. c. Severe service problem. d. When uniform settlement nothing will happened.
42. What is the common problem with pressure-vacuum vents?
a. Fouling materials b. Corrosion between moving parts and guides or seats. c. The deposits of foreign substance by birds or inserts. d. All of the above
43. A plugged floating roof drain can cause the roof to ________.
a. Inoperative b. Damage easily c. Guide to move smoothly d. Additional supports
44. The inspection checklists in Appendix C are:
a. Mandatory for all tanks b. Mandatory only on low-pressure tanks c. Considered a “memory jogger” for the inspector d. None of the above
45. The tanks made by wooden material are also attacked by _______.
a. Inserts b. Moisture c. Atmospheric corrosion on wood d. Stress corrosion
46. After a significant rainfall the __________ on floating roofs should be checked.
a. Dents, because it leads corrosion easily b. Water drains c. Surface area d. All of the above
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47. Before entry or reentry any tank, appropriate safety precautions are necessary, generally such precautions are_______________.
a. Removal of hazardous gases b. Blinding all toxic inlets c. Checking of oxygen level d. All of the above
48. Prior to conducting an external or internal inspection the inspector should review _____________ to become familiar with problems and recommendations noted in previous inspection and maintenance reports.
a. Previous inspection record b. Inspection procedure c. Present inspection procedure d. Drawings, data sheet etc.
49. What type of corrosion can happen between a bolt head and a steel plate?
a. Stress corrosion due to over tight b. Crevice c. Crack d. Pitting e. All of the above
50. When inspecting handrails pay particular attention to tubular members, because they corroded __________.
a. From inside b. Outside c. Easily, because of removal of coating will happen frequently d. By regular touch by operation people
51. Low spot platforms that collect water are routine places for corrosion to occur. This can be solved by _________.
a. Cathodic production b. Small hole should be drilled for drainage c. Proper coating after cleaning d. Raise the height of platform.
52. Tank foundations made of ___________
a. Sand pads b. Concrete piers c. Ring walls d. All of the above
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53. For tanks on a concrete pad, the floor to pad joint should be ___________
a. Visually checked for washing out b. Uneven settlement c. Checked by using surveyor’s level d. Checked for spilling, cracks and general deterioration
54. Corrosion below as anchor-bolt nut sometimes can be detected by__________
a. UT b. RT c. Hammer d. MT
55. Pipe connected to tanks should be inspected. Where pipe enters soil, the soil should be dug away __________ inches to inspect for soil-to-air corrosion?
a. 12 to 24 b. 6 to 12 c. 24 to 36 d. 36 to 48
56. If distortion is found at the nozzles, the welds and shell area should be examined for __________
a. Cracks b. Distortion c. Corrosion d. Bending
57. Ground connections should be ___________ checked.
a. Resistance b. Visually c. Thickness d. Periodically
58. The resistance of the grounding connections should not exceed _______ ohms.
a. 15 b. 10 c. 20 d. 25
59. Which potential problem with coatings is most difficult to see?
a. Blisters b. Rust spot c. Film lifting d. Even discolor
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60. Paint blisters occur most often on the roof and on the shell area that receives most ________
a. Rail fall b. Sun light c. Product gases exposure d. All of the above
61. The ___________ side of an insulated tank is most susceptible to CUI.
a. Shell b. Shaded c. Exposed to sun light d. Bottom
62. CUI may be significant at the bottom of the tank, because the insulation may be in contact with ______________.
a. Product always b. Surface water c. More stressed bottom d. Open atmosphere because removal of insulation easily in bottom side
63. Inspectors should not walk on _____________ tank roofs
a. In-service b. Insulated c. Painted d. Cleaned
64. The depth of a locally corroded area can best be measured with a long __________
a. Straight edge b. Tape c. Steel wire d. Flexible scale
65. The depth of isolated pits are normally measured with a ___________
a. Depth gauge b. UT c. Pit gauge d. Visually
66. What part of the shell of a floating roof tank usually corrodes at twice the rate of the rest of the shell?
a. Upper 24inch of uncoated shell b. All exposed uncoated area c. Twice rate of corrosion will not occur in any part of tank d. Surface of floating roof
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67. Stiffeners and wind girders are normally inspected visually and by _________testing.
a. PT or MT b. Leak c. Hammer d. UT thickness e. Outside calipers and steel rules
68. Caustic tanks may be subject to a corrosion mechanism called _________
a. Stress corrosion cracking b. Caustic embrittlement c. Temper embrittlement d. All of the above
69. Where is caustic cracking most common?
a. Bottom of shell b. Vapor space of the shell & roof c. Heating coils d. Nozzle inlet & outlet from tank
70. Caustic material seeping through cracks will usually form readily visible ___________
a. Salts b. Layer of corrosion c. Bulging d. Powdery from outside through cracks
71. Prior to welding on a tank in caustic service the area should be thoroughly cleaned and checked with the _________ solution.
a. Solvent b. Indicating c. H2SO4 with 10% Nitric acid d. HCL with 25% Nitric acid
72. Hydrogen blisters can be found using:
a. Visual examination with flash light b. Touch with fingers c. PT or MT d. All of the above e. ‘a’ and ‘b’
73. Tank shell distortions can be measured using a ___________
a. Plumb check b. Straight edge c. Steel wire d. Tape
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74. Hydrogen blistering mat be found on the shell near:
a. Bottom b. Nozzles c. Top of the tank d. Weld seams
75. These are causes of tank shell distortion and not this one?
a. Severe corrosion of the shell b. Movement of connecting piping c. Improper welding method d. A vacuum in the tank e. None of the above
76. Tank shell distortions may cause welds to be highly stressed and results in a _________
a. Crack b. Bending c. Collapse d. Corrosion
77. Rivet can be best checked for looseness by using a ____________
a. Light passing through rivets b. Hammer c. Scriber d. UT for loosens and damage
78. The thickness of a tank roof can be checked by __________ or _____________.
a. Hammer test or UT b. UT or RT c. UT or ET d. Scale or outside caliper
79. When walking on a cone-roof tank, planks can be used. Planks that are used should be long enough to span at least __________ should be laid and used as walkways.
a. Two roof rafters b. All the area of roof c. Cover one roof plate d. Leg length of inspector to walk over it.
80. Individuals on a tank roof should walk on the _____________.
a. Rafters b. Weld joints c. Blanks d. Center of roof plates
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81. When walking on a floating roof, the tank should always be in the _________ position.
a. Low position to reach top safely b. High gauge position c. Any where, but safe position d. Correct level position
82. External corrosion on a tank roof will usually be most severe at __________
a. Coating removed area b. Insulation removed area c. Depression where water can remain until it evaporates d. All of the above
83. What is the primary reason for periodically inspecting flame arrestors?
a. Performance Check b. Cleanliness and corrosion c. Plug on arrestors d. None of the above.
84. When tunneling under a tank to inspect the bottom (it is rarely done!) it is difficult to properly _____________ the tunnel.
a. Remove b. Refill c. Inspect d. Access
85. Probably the most expensive way to inspect the bottom-side of the tank floor is to _______ the tank
a. Lift b. Clean c. Inspection hole d. None of the above
86. Types of floating roof drain are_________.
a. Simple open drain b. Swing joint c. Flexible-hose drain d. All of the above
87. When the tank is out-of-service, the floating roof drain piping can be checked by pressure testing. Drains with swing joints require testing at ___________
a. Working pressure b. Design pressure c. Hydrostatic pressure d. Two pressure
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88. During the external inspection, float-type gauges should be checked to make sure they are not cracked or filled with ___________
a. Water b. Liquid c. Any corrosive medium d. All of the above
89. In a tank you noticed distortion, what will be the immediate action?
a. Check for tolerance of distortion b. Immediately inform to owner/ operator c. Determine its cause d. Ask to analysis for fitness for purpose
90. Before allowing individuals on a floating roof tank that is not in the high-gauge position, a ______________ test shall be performed before personnel are allow on the roof.
a. Hammer test b. Thickness test c. Gas test d. Oxygen test
91. Normally internal tank corrosion is most prevalent in:
a. Vapor space b. Liquid level line c. Bottom d. All of the above
92. Dry pyrophoric material can cause:
a. Cracking b. General metal loss c. Ignition d. Pitting
93. Pyrophoric material may accumulate on the tank bottom or on the top of the__________.
a. Bottom plate b. Nozzles c. Sump d. Rafters
94. In source service, corrosion is often occurs in the ___________.
a. Unlined steel b. Insulation c. Liquid area d. Bottom area
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95. In source service, corrosive vapors are formed when the _________ mixes with moisture and air.
a. Vapor b. Hydrogen sulfide c. Water d. Sulfur
96. Carbon steel that has slag inclusions and _______ is more susceptible to hydrogen blistering.
a. Crack b. Un-coated c. High temperature d. Laminations
97. Caustic stress corrosion cracking is prevalent in carbon steel when the temperature is above ________°F
a. 100 b. 400 c. 150 d. 350
98. Tank bottoms are normally inspected visually and with __________
a. MFL b. Ultrasonic thickness or corrosion scan c. Multi transducer ultrasonic inspection with digital or analog display d. All of the above For Question number 99 to 101 : During the internal inspection, a tank floor can be 100% inspected or partially inspected when using a statistical method. Based on the statistical method answer the following.
99. What percentage of the floor should be scanned?
a. 100% b. 50 to 75% c. 25 to 40% d. 5 to 10%
100. What pattern across the tank is generally used?
a. Grid b. ‘X’ c. Line d. Circular
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101. What part should be completely scanned?
a. Any corroded area b. Center area c. Outer circumference next to the shell d. Suspected area
102. Corrosion on the tank bottom may be very ____________.
a. Rare b. Aggressive c. Slow d. Uniform
103. What simple technique can be used to pop deposits out of pits, making the pits much easier to see?
a. Hammering b. Scratching c. Blow with air d. All of the above
104. What tool can assist in measuring the depth of a localized corroded area?
a. Single point ultrasonic-thickness measurements b. RT c. UT, MFL & coupon removal d. All of the above
105. Rivet seams can be checked with a________
a. Hammer b. Scraper c. Visual d. All of the above
106. Depressions in the tank floor and in area around roof supports should be checked for accelerated _________.
a. Corrosion b. Dent c. Damage d. Holes
107. One method to check for penetrations in the bottom is to clean the tank floor and check for _________.
a. Crack b. Corrosion c. Wicking d. Visual
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108. One method to check for bottom-side corrosion that is usually not effective is the _______
a. Coupon removal b. MFL c. Ultrasonic computer mapping d. UT
109. Tanks with bottom angle joining the bottom-to-shell should be checked for _________
a. Corrosion b. Distortion c. Crack d. Leak
110. Tank that contain dilute acids often are lined with________.
a. Rubber lining b. Asbestos lining c. Refractory lining d. Lead lining
111. An effective way to locate pinholes and cracks in lead is with___________
a. MT b. PT c. Visual d. MFL
112. Bulges in a lead liner indicate _________ behind the liner and are likely places of deterioration of the liner.
a. Corrosion b. CUI c. Crack d. Underneath damage in liner
113. What is good practice when examining suspect areas in lead lined tanks?
a. Grid blast and visual b. Visual & MT c. Scraping with knife d. Hammer test
114. Rubber tanks linings can be checked with a __________
a. Holiday detector b. Visual c. PT & visual d. Surface cleaning and visual
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115. Holiday testing is used to test ________
a. Erosion and thickness of lining b. Holes and cracks c. Mechanical damage d. All of the above
116. When using a holiday detector it is important that the voltage does not get high enough to _________ the lining.
a. Puncture b. Check defect in c. Operator safety d. Magnetize
117. Glass-lined tanks should never be _________________.
a. Holiday tested b. Opened c. Hammered d. Leave without NDT after hammer test
118. What type of lined tanks should be painted a unique color to indicate they have a special lining?
a. Rubber lined b. Lead lined c. Refractory lined d. Glass lined
119. If corrosion is noted on the roof and upper shell, the structural members will also usually __________ thinning of the roof or shell.
a. Twice b. Same c. Less d. More
120. What is an effective inspection technique for checking whether there is corrosion behind a concrete lining?
a. Light hammer tapping b. Rust on surface also evident of corrosion behind c. If doubt exists cut a section of lining and inspect d. All of the above
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121. When significant corrosion is seen on the roof during the internal inspection, it is important to erect scaffolding so that ____________
a. Close visual can do. b. NDT for further investigation can do. c. Measurement can taken d. None of the above
122. If corrosion is found internally on the shell at a specific elevation in a cone roof tank, it is important to check the ______________ at the same elevation.
a. Out side of shell b. Roof support column c. Roof structure d. Shell rings
123. What metallurgy should never be hammer-tested?
a. Carbon steel b. Alloy steel c. Cast iron d. Stainless steel
124. What internal tank component should be hydrostatically tested during an internal inspection?
a. Coils b. Nozzles & connections c. Roof drain d. Tank must hydrostatically tested if required
125. Steam heating coils should be inspected for __________ grooving in the bottom of the coil with either UT or RT.
a. Crack b. Blockage c. Condensation d. Erosion
126. Pontoons on swing line should be visually examined and _________________ for cracks.
a. Cleaned b. Hammer tapped c. Conduct leak test d. Air leak test
127. When hydro-testing a tank consideration should be given to the ________ of the shell material.
a. Stress limit b. Notch toughness c. Thickness d. Type
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128. If an atmospheric tank is air tested, the pressure should not exceed _____ inch of water.
a. 0.5 b. 5.0 c. 50 d. 2.0 e. 10
129. A pneumatic test of a tank is good for finding ________ but is not a good pressure test.
a. Leak b. Defect c. Strength d. Bulging
130. What part(s) of the atmospheric tank a very low stress load?
a. Roof b. Bottom of tank resting on pad c. Bottom area away from the shell or annular plate d. All of the above
131. The pressure exerted on the sides of a tank is greatest at the ____________ of the tank.
a. Bottom b. Shell side c. Top side d. Outside, because atmospheric pressure
132. Which of following situations does not appreciably weaken the plate?
a. Crack b. Locally thinned area c. Notch d. Pit
133. Dry pyrophoric accumulations that can’t be cleaned out prior to inspection should be kept __________ during inspection.
a. Dilute b. Covered c. Moist d. Warned to inspection personnel
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134. Hydrogen blistering, caustic stress corrosion cracking and mechanical cracking are less frequently occurs in ___________.
a. Roof & bottom b. Outside of shells c. Inside of shells d. Nozzles and internals
135. How can leaking rivets and rivet seams be repaired?
a. Caulked b. Re-riveted c. Welded or abrasive blast and epoxy coated d. All of the above
136. When riveted seams are seal-welded, all rivets and seams with in ______ inches from the weld should be caulked.
a. 4 b. 10 c. 3 d. 6
137. Defective rivets can also be replaced with __________________.
a. Another rivet b. Welding c. Tap bolts d. Plugging
138. List specific requirements when performing weld repairs to rivet heads and seams.
a. Use large size electrode to fill the rivet hole easily b. Position machine at high amperage to melt large size electrode c. Keep weld bead bigger to fill the hole d. Use back-step bead application e. All of the above
139. When installing a new floor over an existing floor at least ________ inches of clean sand, or metal grating or concrete should separate the two floors.
a. 6 b. 3 c. 1 d. 2
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140. When installing a new floor over existing floor that is cathodically protected, the old floor should ___________________.
a. Be removed b. Not be removed c. Also be protected d. Be considered as bottom
141. When installing a new floor over an existing floor that is cathodically protected, and the old floor is not removed, _______________ should be placed between the old and new floors.
a. New cathodic protection b. Ribbon anodes c. Corrosion cells d. Any of the above
142. Prior to gouging out a crack, what should be done?
a. NDT for locating exact propagation of crack b. Drill hole in each end of crack c. Grind surface deburr d. Mark the area of crack for rechecking
143. Deep pits may be filled with _________________
a. Welding b. Putty c. Paint d. Lining
144. Prior to repairing a pit with a coating, the pit should be thoroughly cleaned by____________
a. Abrasive blasting b. Chemical c. Any method to make pit free form contamination d. Cleaner
145. Leaks in tank roofs are often repaired using a ______________
a. Patch plate b. Welding c. Coating d. Soft patch
146. Good inspection records are the basis of ___________ inspection program.
a. Good b. Effective c. Complete d. Proper
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147. Tank records should be kept for the ____________ of the each tank.
a. Service life b. Up to commissioning c. Up to clearance from AI d. 5 years from commissioning
148. Item should be documented when internal or external tank inspections are performed.
a. Date of next inspection b. Name of person who performed the inspection c. Location of the repair d. All of the above
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Answers for API 575 closed book questions 1. A 2.1 API575 2. C 2.1 API575 3. B 2.1 API575 4. C 2.1 API575 5. D 2.1 API575 6. B 2.1 API575 7. B 3.1 API575 8. A 3.1 API575 9. C 3.1 API575 10. B 3.1 API575 11. C 3.1 API575 12. A 3.1 API575 13. B 3.2 API575 14. A 3.2 API575 15. A 3.3 API575 16. A 3.4 API575 17. B 3.4 API575 18. C 4.2.2 API575 19. A 4.2.3 API575 20. A 4.2.3 API575 21. B 4.2.3 API575 22. D 4.2.3 API575 23. D 4.2.3 API575 24. A 4.3.2 API575 25. B 4.3.1 API575 26. A 4.3.1 API575 27. B 4.3.3 API575 28. B 4.2.3 API575 29. C 5.2.1 API575 30. D 5.2.1 API575 31. D 5.2.1 API575 32. B 5.2.1 API575 33. B 5.2.1 API575 34. A 5.2.2 API575 35. E 5.2.2 API575 36. A 5.2.2 API575 37. B 5.4 API575 38. E 5.4 API575 39. B 5.4 API575 40. B 5.4 API575 41. A 5.4 API575 42. D 5.4 API575 43. A 5.5. API575 44. C 5.5 API575 45. A 5.3 API575 46. B 6.0 API575 47. D 7.1 API575 48. A 7.1 API575 49. B 7.2.1 API575
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50. A 7.2.1 API575 51. B 7.2.2 API575 52. D 7.2.3 API575 53. D 7.2.3 API575 54. C 7.2.4 API575 55. B 7.2.5 API575 56. A 7.2.5 API575 57. B 7.2.6 API575 58. D 7.2.6 API575 59. C 7.2.7 API575 60. B 7.2.7 API575 61. B 7.2.8 API575 62. B 7.2.8 API575 63. B 7.2.8 API575 64. A 7.2.9.1 API575 65. C 7.2.9.1 API575 66. A 7.2.9.1 API575 67. C 7.2.9.2 API575 68. B 7.2.9.3 API575 69. C 7.2.9.3 API575 70. A 7.2.9.3 API575 71. B 7.2.9.4 API575 72. E 7.2.9.4 API575 73. B 7.2.9.5 API575 74. A 7.2.9.4 API575 75. E 7.2.9.5 API575 76. A 7.2.9.5 API575 77. B 7.2.9.6 API575 78. A 7.2.10 API575 79. A 7.2.10 API575 80. B 7.2.10 API575 81. B 7.2.10 API575 82. C 7.2.10 API575 83. B 7.2.11 API575 84. B 7.3.1 API575 85. A 7.3.1 API575 86. D 7.3.3 API575 87. D 7.3.3 API575 88. B 7.3.5 API575 89. C 7.2.9.5 API575 90. C 7.2.10 API575 91. D 7.4.2 API575 92. C 7.4.2 API575 93. D 7.4.2 API575 94. A 7.4.3 API575 95. B 7.4.3 API575 96. D 7.4.3 API575 97. C 7.4.3 API575 98. D 7.4.4 API575 99. D 7.4.4 API575 100. B 7.4.4 API575
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101. C 7.4.4 API575 102. B 7.4.4 API575 103. A 7.4.4 API575 104. C 7.4.4 API575 105. B 7.4.4 API575 106. A 7.4.4 API575 107. C 7.4.4 API575 108. A 7.4.4 API575 109. C 7.4.5 API575 110. D 7.4.7 API575 111. B 7.4.7 API575 112. C 7.4.7 API575 113. C 7.4.7 API575 114. A 7.4.7 API575 115. B 7.4.7 API575 116. A 7.4.7 API575 117. C 7.4.7 API575 118. D 7.4.7 API575 119. A 7.4.8 API575 120. D 7.4.7 API575 121. C 7.4.8 API575 122. B 7.4.8 API575 123. C 7.4.9 API575 124. A 7.4.9 API575 125. C 7.4.9 API575 126. B 7.4.9 API575 127. B 7.5 API575 128. D 7.5 API575 129. A 7.5 API575 130. D 7.6 API575 131. A 7.6 API575 132. D 7.6 API575 133. C 7.4.2 API575 134. A 7.4.3 API575 135. D 8.2 API575 136. D 8.2 API575 137. C 8.2 API575 138. D 8.2 API575 139. B 8.2 API575 140. A 8.2 API575 141. B 8.2 API575 142. B 8.2 API575 143. B 8.3 API575 144. A 8.3 API575 145. D 8.3 API575 146. B 9.1 API575 147. A 9.2 API575 148. D 9.2 API575
