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API 570 > 570 Study Guide - Section 8 - Repairs, Alternations & Rerating > Flashcards

570 Study Guide - Section 8 - Repairs, Alternations & Rerating Flashcards

1
Q

When repairs are conducted on a piping system, the repairs should meet the requirements of the API 570 and:

A. ASME Section VIII
B. ASME B31.3
C. ASME B31.3 or the original construction code
D. Any piping code selected by the piping engineer

A

C. ASME B31.3 or the original construction code

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2
Q

All repair and alteration work must be performed by:

A. A jurisdictional agency
B. The repair organization
C. The authorized inspection agency
D. Anyone approved by the authorized piping inspector

A

B. The repair organization

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3
Q

Before the work is started, all repair and alterations to piping systems must be authorized by the:

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

A. Authorized inspector

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4
Q

Before the work is started, all alterations to piping systems must be authorized by the:

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

C. Authorized inspector and the pressure vessel engineer

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5
Q

Who designs any inspection hold points required during the repair or alteration of a piping system?

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

A. Authorized inspector

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6
Q

Who designs any inspection hold points required during the repair or alteration of a piping system?

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

A. Authorized inspector

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7
Q

An inspector may give prior general authorization for limited or routine repairs provided that:

A. These repairs will not require a pressure test
B. These repairs will not require any NDE examinations
C. These repairs are done only to P1 or P3 materials
D. The Inspector is satisfied with the competency of the repair organization

A

D. The Inspector is satisfied with the competency of the repair organization

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8
Q

An old piping system has experienced significant corrosion. About 250’ of 8 NPS A-106 piping is being replaced. This activity must be authorized by the:

A. Authorized inspector
B. Piping engineer
C. Authorized inspector and the piping engineer
D. Authorized inspector or the piping engineer

A

A. Authorized inspector

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9
Q

An old piping system has experienced significant corrosion. The 125’ 6 NPS A-53-B piping system will be upgraded with 9 chrome piping materials. This activity must be authorized by the:

A. Authorized inspector
B. Piping engineer
C. Authorized inspector and the piping engineer
D. Authorized inspector or the piping engineer

A

C. Authorized inspector and the piping engineer

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10
Q

During alterations most of the code requirements come from:

A. API 570
B. ASME B31.3
C. ASME B31.3 or the construction code
D. The construction code

A

C. ASME B31.3 or the construction code

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11
Q

Prior to a piping system repair, all proposed NDE and testing must be approved by the:

A. Authorized inspector
B. Piping engineer
C. Authorized inspector and the piping engineer
D. Authorized inspector or the piping engineer

A

D. Authorized inspector or the piping engineer

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12
Q

Prior to a piping system repair, all proposed NDE and testing must be approved by the:

A. Authorized inspector
B. Piping engineer
C. Authorized inspector and the piping engineer
D. Authorized inspector or the piping engineer

A

D. Authorized inspector or the piping engineer

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13
Q

During piping system alterations, hold points shall be designated by:

A. The Authorized inspector
B. The piping engineer
C. Both authorized inspector and the piping engineer
D. Either the authorized inspector or the piping engineer

A

A. The Authorized inspector

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14
Q

During piping system repairs, hold points shall be designated by:

A. The Authorized inspector
B. The pressure vessel engineer
C. Both authorized inspector and the pressure vessel engineer
D. Either the authorized inspector or the pressure vessel engineer

A

A. The Authorized inspector

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15
Q

Who should approve on-stream welding of in-service piping system?

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

A

D. Owner/user

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16
Q

Weld repair of cracks that have occurred on in-service piping should not be attempted without consulting with:

A. The authorized inspector
B. The piping engineer
C. The authorized inspector and the piping engineer
D. Either the authorized inspector or the piping engineer
E. A fitness for service expert

A

B. The piping engineer

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17
Q

During repairs or alterations, who should approve work at designated hold points?

A. Authorized inspector
B. Piping engineer
C. Authorized inspector and the pressure piping engineer
D. Authorized inspector or the piping engineer

A

A. Authorized inspector

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18
Q

Once piping system repair work is complete, who should approve the finished work?

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

A. Authorized inspector

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19
Q

Once piping system alteration work is complete, the finished work should be approved by:

A. Authorized inspector
B. Pressure vessel engineer
C. Authorized inspector and the pressure vessel engineer
D. Authorized inspector or the pressure vessel engineer

A

A. Authorized inspector

20
Q

A 24 NPS carbon steel elbow is being replaced. Once the elbow installation is completed, who should check that the work was done correctly?

A. Authorized inspector
B. NDE examiner
C. Piping engineer
D. Either the authorized inspector or the pipe engineer

A

A. Authorized inspector

21
Q

A new 4 NPS line is being tied into a 12 NPS schedule 160 chrome pipe. The unit startup is dependent on the completion of this work. Due to the critical timing, it is extremely important that this tie-in is in the designed location. Once the repair organization marks the tie-in location on the 12 NPS pipe, who should verify that the tie-in location is correct?

A. NDE examiner
B. Owner/user
C. Maintenance department personnel
D. Authorized inspector

A

D. Authorized inspector

22
Q

A full encirclement welded split sleeve shall be signed by:

A. The authorized piping inspector
B. The piping engineer
C. A professional engineer
D. A fitness for service consultant or a professional engineer

A

B. The piping engineer

23
Q

Longitudinal cracks on in-service piping systems shall not be repaired using a fillet welded patch unless:

A. Property NDE has been performed and reviewed by the authorized piping inspector
B. Property NDE has been performed and reviewed by the piping engineer
C. The all knowing piping engineer uses a crystal ball and foresees that the crack will not grown beyond the clamp
D. A piping engineer determines, without a crystal ball, that the crack will not grow beyond the clamp

A

D. A piping engineer determines, without a crystal ball, that the crack will not grow beyond the clamp

24
Q

A deep longitudinal crack is discovered on a striaght run length of 48’ pipe. Based on expert analysis, it is expected that the crack will grow. Which of the following repairs could be performed?

A. Fillet-welded split sleeve
B. Flush patch
C. Non-welded pipe clamp
D. Non-welded clamp with stays to account for axial forces

A

B. Flush patch

25
Q

A deep corroded area is found on a pipe system. A temporary repair may be made by fillet welding a split sleeve as long as the specified minimum yield strength of the pipe is:

A. 20,000 psi
C. 40,000 psi
E. 70,000 psi

A

C.

26
Q

In which of the following situations is a fillet weld patch NOT allowed?

A. An 8 NPS pipe having a yield strength of 30,000 psi
B. A 16 NPS pipe needing a rectangular 6’ patch with 1” radius concerns
C. A 36 NPS refractory lined pipe has failed refractory and needs a patch installed on top of an existing patch
D. A 10 NPS pipe needs a round 4” diameter patch

A

C. A 36 NPS refractory lined pipe has failed refractory and needs a patch installed on top of an existing patch

27
Q

The new materials used for temporary welded repair shall:

A. Match the base metal unless approved by the piping engineer
B. Have a carbon content less than 0.035%
C. Meet the requirements of ASME BPV Section II
D. Must have a yield strength greater than 40,000 psi

A

A. Match the base metal unless approved by the piping engineer

28
Q

A fillet weld patch is installed on an in-service pipe. What must be done prior to welding?

A. Select repair materials with a carbon content greater than 0.35%
B. An inspector determines that wall thickness is adequate for welding
C. Get approval from the jurisdiction
D. Engineer should design the patch to the requirements of API 579

A

B. An inspector determines that wall thickness is adequate for welding

29
Q

A split sleeve patch is welded to an in-service pipe. Prior to welding, who must ensure that adequate thickness remains in the vicinity of the weld?

A. Authorized piping inspector
B. NDE examiner
C. Both the NDE examiner and the inspector
D. Either the NDE examiner or the inspector

A

A. Authorized piping inspector

30
Q

In which situation should in-service welding (active process is in the pipe) NOT be conducted?

A. All class 1 piping systems
B. Caustic
C. Ethane, propane or butane
D. Hydrogen

A

B. Caustic

31
Q

Temporary weld repairs on piping systems should be removed and replaced with a suitable permanent repair:

A. Within the next 6 months
B. Within the next year
C. At the same interval as the Thickness Measurement inspection
D. During the next maintenance opportunity

A

D. During the next maintenance opportunity

32
Q

Temporary welded repairs may remain in place past the next maintenance opportunity, only if approved and documented by:

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

A

C. Piping engineer

33
Q

Two fillet weld patches are installed on a 4 NPS pipe (I.D. about 4.0”). Both patches are 0.250” thick. Determine the minimum allowed distance between these fillet-welded patches.

A. 0.25”
B. 1.0”
C. 2.8”
D. 4.0”

A

B. 1.0”

34
Q

Two fillet weld patches are installed on a 12 NPS pipe (I.D. about 12.0”). Both patches are 0.375” thick. Determine the minimum allowed distance between these fillet-welded patches

A. 0.375”
B. 2.1”
C. 4.5”
D6.0”

A

B. 2.1”

35
Q

Which of the following is considered a permanent repair to a piping system?

A. Insert flush welded patch
B. Full encirclement lap band
C. Non-metallic patch
D. Non-penetrating fillet patches

A

A. Insert flush welded patch

36
Q

An insert patch is installed on a Class 3 pipe. Which of the following is NOT an API 570 requirements?

A. Repair plan must be authorized by an inspector
B. Patch must have full-penetration grove welds
C. Corner radius on the patch must be at lease 1”
D. Completed weld must be 100% inspected using either RT or UT

A

D. Completed weld must be 100% inspected using either RT or UT

37
Q

An insert patch is installed on a Class 2 pipe. Which of the following is NOT an API 570 requirement?

A. Repair plan must be authorized by the inspector
B. Patch must have full-penetration grove welds
C. Corner radius on the patch must be at least twice the pipe’s required thickness
D. Completed weld must be 100% inspected using either RT or UT

A

C. Corner radius on the patch must be at least twice the pipe’s required thickness

38
Q

Which of the following is NOT a requirement when installing an insert plate (flush patch) on a piping system?

A. The patch-to-pipe weld must have complete penetration and complete fusion
B. The patch must be either round or rectangular (with rounded corners)
C. The patch must have rounded corners with 1” minimum radius
D. Class 1 and Class 2 systems must be 100% inspected with either RT or UT
E. The patch must be approved by the authorized inspector

A

B. The patch must be either round or rectangular (with rounded corners)

39
Q

What is the minimum allowed corner radius for an insert plate?

A. 1"
B. 2"
C. 3"
D. 6"
E 12"
A

A. 1”

40
Q

When weld build- up is performed in a corroded area, the:

A. Electrode strength must exceed the base metal strength
B. Surface irregularities should be ground smooth
C. Total repair depth is limited to 25% of the normal pipe thickness
D. Total repair depth is limited to 50% of the normal pipe thickness

A

B. Surface irregularities should be ground smooth

41
Q

During a profile RT inspection of pipe system, a circumferential weld was discovered that has experience significant internal corrosion. A non-welded clamp is placed over this weld. What significant factor should be considered in the design of this claim?

A. Clamp materials should match base material
B. Pipe class
C. Potential effects of axial forces
D. Susceptibility of environmental cracking

A

C. Potential effects of axial forces

42
Q

Temporary non-welded repairs:

A. May remain in place indefinitely if approved by the piping engineer
B. Must be authorized by owner/user
C. Must be replaced at the next opportunity
D. Must be made from materials with a yield stress less than 40,000 psi

A

C. Must be replaced at the next opportunity

43
Q

The procedures for installing any leak sealing fluids used during leak repair shall be reviewed and approved by:

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

A

D. Either the authorized piping inspector or piping engineer

44
Q

A bolted clamp at a flange begins to leak. What is a significant concern?

A. The potential for gasket blow-out
B. Corrosion or stress corrosion cracking of the bolts
C. Fatigue cracking at flange face
D. Hydraulic pressure from the expansion of the leak sealing fluid

A

B. Corrosion or stress corrosion cracking of the bolts

45
Q

All repair and alteration welding shall be performed in accordance with:

A. API 570
B. API 577
C. ASME Section IX
D. ASME B31.3
E. ASME B31.3 or the code to which the piping was built
A

E. ASME B31.3 or the code to which the piping was built

46
Q

Any welding conducted on in-service piping must be performed in accordance with:

A. API 571
B. API 577
C. API 579
D. API 2201
E. ASME Section IX
A

D. API 2201

API 570 (13 decks)

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