Exam (elaborations)
API Codes with 100- correct answers 2024
- Course
- Institution
API Codes with 100- correct answers 2024
[Show more]
Content preview
API 570 - Closed Book -Practice Exam 2024 with
complete verified solutions
what is an authorized piping inspector not required to have? - API 570 Annex A -
A.2
Four years of experience inspecting in-service piping systems
What inspection tool can be used to measure the weld prep angle? - API 577
8.3.2.4.b
Bridge Cam Gauge
A carbon steel vessel in Caustic service has a temperature excursion up to 425℉.
No PWHT has been performed. what type of deterioration could be expected?
- API 571: 3.15.3.f & Figure 3-15-1
Stress corrosion Cracking
Which of the following is not an acceptable method for establishing the piping
corrosion rate in a new service? - API 570: 7.3
Corrosion data from phone discussion with a consultant corrosion engineer.
Which of the following can cause a pressure relief valve to chatter? - API 576:
5.2.c & 5.2.g
Lengthy Pipe to relief device inlet, obstructions in the inlet piping, significantly
over-sized relief device.
For welded pipe, the normal thickness under-tolerance is: - API 574: 4.1.1
-0.01 inch.
When qualifying a weld procedure, the essential variables must be: - ASME Sect.
IX: QW-200.1(b) & QW-200.2(b)
recorded on both the WPS and PQR
What is the minimum # of RT exposures needed to RT a 2 NPS weld? (No access to
inside) - ASME Sect V. - Fig. A-210-2 & T-271.2(b)(1)
2
What tests are used to qualify a welder or a welding procedure - "Welding
qualification Test" - ASME Sect. IX - QW-300.1
Bend, RT & UT
,What tests are used to qualify a welder or a welding procedure - "Procedure
qualification Test" - ASME Sect. IX - Table QW-451.1
Bend, Tension
Sour Water Corrosion on Carbon Steel equipment typically appears as: API 571:
3.58.5.a
General wall loss.
A propane piping system should be classified as: API 570: 6.3.4.2(b)
Class 1
According to ASME/ANSI B16.5 flanges made from plater materials can only be
used for: ASME B16.5: 1.1(b)(2)
Blind Flanges
The corrosiveness of soils can be determined by measuring the soil's: - API 570:
9.5 & API 574: 11.7.2.4
Resistivity
The flash point of a hydrocarbon is the temperature at which: API 570: 3.1.33
Enough vapors are emitted to support combustion.
Which of the following is a required marking on ASME / ANSI B16.5 Flanges?
- ASME B16.5: 4.2.6
Nominal Pipe Size (NPS)
During welding, non-essential variables: - ASME Sect. IX: QW-200.1(a) & (b)
must be recorded only on the WPS and must be followed by the welder.
After an alteration to 1" thick pipe, the weld is radiographed. The correct hole-
type IQI is used. when the film is reviewed, which of the following would cause
the film to be rejected? - ASME Sect. V: T-282.1 & T-284
A faint light "B" is seen in the film & the minimum film density in the weld is 1.7
MIC occurring in 300 - series stainless steel usually forms: - API 571: 3.45.5.b
Sub-Surface cavities.
which of the following activities are included in the scope of API 570? - API 570:
1.1.1
Rerating a piping system & replacing a portion of a piping system.
Which of the following piping systems may be excluded from the requirements of
API 570? - API 570: 1.2.2.a
4 NPS Steam line
Graphitization of carbon steels begins to occur when metal temperatures exceed
what temperature? - API 574: 10.3.5.3
,800 °F
Which of the following often causes a pressure relief device's spring to fail by
stress corrosion cracking? - API 576: 5.3.1
Hydrogen sulfide
During a pipe repair, preheat is substituted for the required post weld heat
treatment. What is the minimum acceptable preheat temperature? - API 570:
8.2.4.2
300 °F
The maximum inspection interval for a pressure relief device in a clean, non-
corrosive and non-fouling service is: - API 570: 300.1, 300.1.3 & Fig. 300.1.1
Based on performance of the device with a maximum interval of 10 years.
A process pipe should be classified as Class 1 when the percentage of H2S
exceeds: - API 570: 6.3.4.2.(c)
3%
A welder becomes unqualified when he has not welded using the: - ASME Sect. IX:
QW-322.1(a)
Process for 6 months.
cyclic stresses may cause: - API 571: 3.43.1.a
fatigue
A pressure test is always required: - API 570: 8.2.8
whenever the Authorized inspector believes one is necessary.
More thickness CML's should be selected for piping systems with: - API 570: 5.6.3
Higher expected corrosion rates.
General, raised face flanges should have surface finish of: - ASME B16.5 - 6.4.5.3
125 - 250 micro-inch.
During a direct visual exam of a pipe weld, the minimum light intensity should be:
- API 577: 8.3.2.2.A
100 footcandles.
Describe the "3G" welding test position. - ASME Sect. IX: QW-121.3 & Fig. QW-
461.3
Vertical groove
When welding together piping components of different thickness, the thicker part
should be trimmed with a maximum taper of: - ASME B31.3: 328.4.3
30°
, Which of the following piping components is most likely to have a substitution
with the wrong material? - API 578: 5.6.2.2
Bolting
Liquid thermal relief valves should be set at a pressure Not higher than: - ASME
B31.3: 322.6.3(b)(2)
120% of the design pressure.
When establishing a PMI program, who determines the extent of PMI performed?
- API 570: 5.12
Owner/User
The material verification program specified by API 578 covers: - API 578: 1.1
only pressure-containing components
What is the interval for thickness measurements on a class 1 piping system? - API
570: Table 1 (pg. 45) & 6.3.3
the lesser of 5 years or 1/2 the remaining life of the pipe
according to B31.3, a weld procedure qualification records from a previous
employer can: - ASME B31.3: 328.2.2
be accepted if the owner approves.
weep-holes in repads should normally: - API 570: 5.5.5
remain open on in-service pipe.
for soil-to-air inspections on uncoated lines, it is recommended to excavate the
soil: - API 574: 7.4.6
6 - 12"
when performing preheat to a 0.500" thick pipe, the preheat zone must extend:
- ASME B31.3: 330.1.4
3" all directions from the start of the weld.
When obtaining thickness measurements: - API 570: 6.5.1
a CML on each type of pipe component should be measured.
flange bolts are unacceptable if the bolt threads to NOT extend: - API 570: 5.15
inside the nut within 1 thread of the nut face.
Carbon steel materials are most likely to be incorrectly substituted in: - API 578:
4.1
A chrome steel pipe system.
Per B31.3 how much of the fabrication should be visually examed for a pipe in
Severe cyclic service? - ASME B31.3: 341.4.3(a)(1)
100%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BRAINBOOSTERS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
50843 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now