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API 570 > Section 5C - Inspection Examination & Testing (API 570 pg 37-41) > Flashcards

Section 5C - Inspection Examination & Testing (API 570 pg 37-41) Flashcards

1
Q
  1. When designating an injection point circuit, the recommended upstream limit of the injection point circuit is a minimum of:

A. 12 inches or 3 pipe diameters, whichever is less
B. 12 inches or 3 pipe diameters, whichever is greater
C. 12 inches or 10 pipe diameters, whichever is less
D. 12 inches or 10 pipe diameters, whichever is greater

A

B. 12 inches or 3 pipe diameters, whichever is greater

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2
Q
  1. When designating an injection point circuit, the recommended downstream limit of the injection point circuit is a minimum of:

A. 25 feet from the injection point
B. The 2nd change in direction
C. 25 feet past the second change in direction
D. The lesser of 2nd change in direction or 25 feet past the 1st change in direction

A

D. The lesser of 2nd change in direction or 25 feet past the 1st change in direction

(Answer key says E but there is no E, looks like answer is D)

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3
Q
  1. An injection point circuit is subject to localized corrosion. Which of the following is NOT necessarily applicable when selecting CML locations for this circuit?

A. Add grid with UT reading points spaced ≤2” apart
B. Add CML at the expected impingement point of the injection point
C. Add CML at the upstream and downstream limits of the injection point circuit
D. Add CML at the intermediate locations along straight sections of this circuit

A

A. Add grid with UT reading points spaced ≤2” apart

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4
Q
  1. Injection point circuit is subject to localized corrosion. Which of the following is not necessarily a preferred NDE method for examining this circuit?

A. Guided Wave Examination
B. Profile RT
C. Spot UT with a grid
D. UT scanning

A

A. Guided Wave Examination

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5
Q
  1. During scheduled inspections of injection points, more extensive inspections should be applied to area beginning 12 inches upstream of the injection nozzle and continuing:

A. At least 3 pipe diameters downstream of the injection point
B. At least 10 pipe diameters downstream of injection point
C. To the first change in flow direction
D. To 25 feet past the 1st change in direction

A

B. At least 10 pipe diameters downstream of injection point

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6
Q
  1. A pressure test on a process piping is normally conducted to the requirements of:

A. ASME B16.5
B. ASME B31.3
C. ASME Section VIII Div 1
D. API 598

A

B. ASME B31.3

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7
Q
  1. When a tightness test is performed on a pipe, the test pressure is:

A. Based on the construction code’s test pressure
B. Based on the current code’s test pressure
C. Specified by the Inspector
D. Specified by the Owner/User

A

D. Specified by the Owner/User

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8
Q
  1. A cracked circumferential weld is repaired by welding. Instead of pressure testing the entire piping circuit, only this weld and a couple inches of pipe will be pressure tested (using a test plug). The substitution of a component pressure test instead of testing the entire circuit requires approval of:

A. The Inspector
B. The engineer
C. Either the inspector or the engineer
D. Both inspector or engineer

A

B. The engineer

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9
Q
  1. A pressure test on a piping system that is altered should be:

A. Done after any required PWHT has been completed
B. Held a minimum of 15 minutes
C. Checked with gauge that has a maximum range of 5 times the test pressure
D. Done prior to priming or painting of welds

A

A. Done after any required PWHT has been completed

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10
Q
  1. A hydrotest is planned for a large diameter low-chrome pipe. Be sure that:

A. The supporting structure is adequate for the weight of the water
B. Low chloride water is used
C. An inhibitor is added to prevent stress corrosion cracking
D. A relief device is added with the set pressure ≤110% of the test pressure

A

A. The supporting structure is adequate for the weight of the water

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11
Q
  1. A pressure test cannot be performed using water due to potential contamination of the process. A flammable liquid will be used in-lieu of water. The flashpoint of the test medium must be at least:

A. 50°F
B. 120°F
C. 150°F
D. 400°F

A

B. 120°F

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12
Q
  1. When hydrotesting 300 SS piping systems, the maximum chloride must be less than:

A. 50 ppm
B. 100 ppm
C. 200 ppm
D. 250 ppm

A

A. 50 ppm

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13
Q
  1. What is a concern when hydrotesting sensitized austenitic stainless steel?

A. Brittle failure
B. Oxygen pitting
C. Polythionic stress corrosion cracking
D. Temper – embrittlement

A

C. Polythionic stress corrosion cracking

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14
Q
  1. A hydrotest will be performed on an austenitic SS piping that is subject to polythionic stress corrosion cracking. What type of test fluid should be considered for the hydrostatic test?

A. Alkaline – water solution
B. Low sodium water
C. Potable water
D. Steam Condensate

A

A. Alkaline – water solution

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15
Q
  1. Which is NOT required when hydrotesting 300 series stainless steel piping systems?

A. Use low chloride water
B. Raise pressure in small steps
C. Thoroughly drain the piping
D. Thoroughly dry the inside of the pipe

A

B. Raise pressure in small steps

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16
Q
  1. A pneumatic test may be performed when it is impractical to perform a hydrotest. At a minimum, the safety precautions of which code should be followed?

A. API 579
B. ASME section II
C. ASME section VIII Division 2
D. ASME B31.3

A

D. ASME B31.3

17
Q
  1. Brittle fractures usually have occurred:

A. During startup
B. In stainless steel vessels
C. During the first hydrotest
D. In vessels made with thinner materials

A

C. During the first hydrotest

18
Q
  1. Which of the following materials is most prone to temper embrittlement?

A. Carbon steel
B. Low chromes
C. Stainless steel
D. High nickel alloys

A

B. Low chromes

19
Q
  1. A Hydrotest is performed on an existing pipe following a repair. The pipe wall is 1/2” thick. What is the minimum Allowed metal temperature for this test ? (Open book )

A. 32°F
B. 70°F
C. 10° above the vessel’s MDMT
D. 30° above the vessel’s MDMT

A

C. 10° above the vessel’s MDMT

20
Q
  1. A Hydrotest is performed on an existing pipe following a major repair. The pipe wall is 2-1/2” thick. What is the minimum Allowed metal temperature during this test ? (Open book )

A. 32°F
B. 70°F
C. 10° above the vessel’s MDMT
D. 30° above the vessel’s MDMT

A

D. 30° above the vessel’s MDMT

21
Q
  1. A Hydrotest is being conducted on a piping system. The relief device is NOT removed or blinded. What other option can be used to keep the relief device from popping ?

A. Blind the outlet of the relief device
B. Place test clamps on the relief device
C. Adjust the relief device’s valve spring
D. Place a rupture disk under the relief device having burst pressure of 125% of the relief device’s set pressure

A

B. Place test clamps on the relief device

22
Q
  1. Some of a piping system’s valves will be used as isolation during a pressure test. Caution should be used NOT to exceed the permissible seat pressure described in: (Open Book)

A. ASME B16.34
B. ASME B31.3
C. API 578
D. API 2201

A

A. ASME B16.34

23
Q
  1. A hydrotest is conducted on an in – service piping circuit after an alteration. The pipe has MAWP is 100 psig and the test pressure is 150 psig. The close visual examination should be conducted at what pressure?

A. ≤ 100 psig
B. Between 125–150 psig
C. At 150 psig
D. Pressure specified by the Owner/User

A

A. ≤ 100 psig

24
Q
  1. Substituting appropriate NDE procedures for a pressure test after an alteration may be done only after approval by:

A. The Inspector
B. The piping engineer
C. Both inspector and piping engineer
D. Either Inspector or piping engineer

A

C. Both inspector and piping engineer

25
Q
  1. Who determines the need for establishing a PMI program at a petrochemical facility that checks for inadvertent material substitution in existing Alloy systems?

A. API’s compliance committee
B. Authorized inspector
C. Corrosion specialist
D. Owner/user

A

D. Owner/user

26
Q
  1. A material verification program should be consistent with which code?

A. API 578
B. API 579
C. API 581
D. API 598

A

A. API 578

27
Q
  1. During a PMI inspection, a component is discovered that does NOT meet the acceptance criteria. Who is involved in establishing the date to replace this component?

A. Authorized inspector and piping engineer
B. Authorized inspector and corrosion specialist
C. Piping engineer and owner/user
D. Owner/user, authorized inspector and corrosion specialist

A

D. Owner/user, authorized inspector and corrosion specialist

28
Q
  1. In certain processes, low – silicon carbon steel may be subject to Sulfidation at temperatures above:

A. 350°F
B. 500°F
C. 650°F
D. 800°F

A

B. 500°F

29
Q
  1. Sulfidation Can be an issue on carbon steel with a silicon content with less than: (open book)

A. 0.1%
B. 0.35%
C. 0.5%
D. 0.6%

A

A. 0.1%

30
Q
  1. Inspection plans for Suldifation corrosion should be in accordance with:(open book)

A. API 939 –C
B. API 2217
C. OSHA 1492
D. NACE 1776

A

A. API 939 –C

31
Q
  1. Per API 570, during repairs and alterations, the inspector shall verify that new materials used are correct. What is the minimum amount of verification that the inspector shall perform?

A. 100% of all metallurgies
B. 100% of all alloys
C. A sampling of all metallurgy’s
D. A sampling of all alloys
E. A sampling of all alloys used for pressure containment

A

E. A sampling of all alloys used for pressure containment

32
Q
  1. PMI testing shall be performed by:

A. An Inspector or examiner
B. The Inspector
C. Someone with a SNT–TC–1A PMI Certification
D. Someone else, it’s never my job!

A

A. An Inspector or examiner

33
Q
  1. A piping elbow fails on a 9% Chrome piping system. It is determined that the failed elbow was just 2-1/4% Chrome that was accidentally installed. Further verification of the other existing materials is needed. Who determines how much additional verification is needed?

A. Authorized Inspector
B. piping engineer
C. Both the authorized inspector and engineer
D. Owner/user

A

A. Authorized Inspector

34
Q
  1. In a pipe circuit, thickness measurements are NOT normally taken on which of the following?

A. Elbows
B. Reducers
C. Tees
D. Valves

A

D. Valves

35
Q
  1. Valves in regeneration piping at the Catalytic Reforming Unit should be examined for:

A. Crevice corrosion
B. Erosion
C. Liquid metal embrittlement
D. Thermal fatigue

A

D. Thermal fatigue

36
Q
  1. A Piping system has experienced high rates of corrosion in turbulent areas. The Inspector decides to check the gate valves in this pipe system line for corrosion. The most likely place for accelerated corrosion is:

A. At the valve inlet
B. At the valve inlet and outlet
C. Between the seats
D. In the area next to the valve stem packing

A

C. Between the seats

37
Q
  1. Control valve bodies, particularly in high–pressure–drop services are most susceptible to what type of degradation mechanism?

A. crevice corrosion
B. Fatigue
C. Localized corrosion/erosion
D. Pitting

A

C. Localized corrosion/erosion

38
Q
  1. A valve body has been recently serviced. The pressure test should be in accordance with:

A. API 396
B. API 598
C. ASME B16.34
D. ASME B34.16

A

B. API 598

39
Q
  1. Critical check valves should be inspected with a(n):

A. External visual exam
B. Visual exam of the internal parts
C. Internal visual exam with either MT or PT
D. Sonic scope during operation to determine if flow reversal is occurring

A

B. Visual exam of the internal parts

API 570 (16 decks)

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