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B31.3 Code Endorsment exam questions and answer
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ASME B31.3 OPEN & CLOSED BOOK (165 Q&A)(FOR API 570 & SI EXAMINATIONS)
HUGE TIP: ASME B31.3 is easy … You get about 20 – 25 Questions that require
you use “BASE CODE” (Most are Open Book) … Base Code = Chap 1 – 6 (Pg 1-85)
& you must be able to quickly use “bookmarks” feature & locate Stress Tables …
Table A-1 (Pg 156 CS) gives Value “S” & Table A-1 B (Pg 333) gives Value “E” …
Take this practice exam “CLOSED BOOK” first … answer what you can, then go
back and use “OPEN BOOK” practicing using “Bookmarks” features … Practice
(Remember, all who pass exams use the Study Guide)
PROCESS PIPING Chapter I … Section 300
General Statements … You should understand the following about ASME B31.3
(b) Responsibilities
(1) Owner. The owner of a piping installation shall have overall responsibility for compliance with this
Code, and for establishing the requirements for design, construction, examination, inspection, and
testing that will govern the entire fluid handling or process installation of which the piping is a part. The
owner is also responsible for designating piping in Category D, Category M, High Pressure, and High
Purity Fluid Services, and for determining if a specific Quality System is to be employed. [See paras.
300(d)(4) through (7) and Appendix Q.]
(3) Manufacturer, Fabricator, and Erector. The manufacturer, fabricator, and erector of piping are
responsible for providing materials, components, and workmanship in compliance with the
requirements of this Code and of the engineering design.
(c) Intent of the Code
(1) It is the intent of this Code to set forth engineering requirements deemed necessary for safe design
and construction of piping installations.
(2) This Code is not intended to apply to the operation, examination, inspection, testing, maintenance,
or repair of piping that has been placed in service. The provisions of this Code may optionally be applied
for those purposes, although other considerations may also be necessary.
(d) Determining Code Requirements YOU MUST KNOW THE BASE CODE
(2) For metallic piping not designated by the owner as Category M, High Pressure, or High Purity Fluid
Service (see para. 300.2 and Appendix M), Code requirements are found in:
Chap. I thru VI (Base Code) & Fluid Service Requirements are found in:
(a) Chap III for materials … (b) Chap II, Part 3, for components … (c) Chap II, Part 4, for joints
300.1.1 Content and Coverage
(a) This Code prescribes requirements for materials and components, design, fabrication, assembly,
erection, examination, inspection, and testing of piping.
(b) Code applies to piping for all fluids, including (Very similar to API 570 Section 1 Included Services):
(1) Raw, intermediate, and finished chemicals … (2) Petroleum products …
(3) Gas, steam, air, and water … (4) Fluidized solids … (5) Refrigerants … (6) Cryogenic fluids
(c) See Fig. 300.1.1 for a diagram illustrating the application of B31.3 piping at equipment. The
joint connecting piping to equipment is within the scope of B31.3.
, ASME B31.3 Practice Exam Questions (Chapter 1 Scope … 10 Q&A)
1. Who has overall responsibility for compliance to the ASME B31.3 Process Piping Code?
A) Owner B) Manufacturer C) Fabricator D) Erector
Answer = A … Reference: ASME B31.3, Section 300.b.1 Should know
2. Who is responsible for providing materials, components and workmanship in compliance
to the ASME B31.3 Process Piping Code and Engineering Design?
A) Owner B) Manufacturer C) Fabricator D) Manufacturer, Fabricator & Erector
Answer = D … Reference: ASME B31.3, Section 300.b.3 Should know
3. Refrigerant piping is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) ASME B31.8
Answer = B … Reference: ASME B31.3, Section 300.1.1.b.5 On the Nov 2013 SI Exam
4. Cryogenic fluids are covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) ASME B31.8
Answer = B … Reference: ASME B31.3, Section 300.1.1.b.6 Should know for SI Exams
ANSWER THE QUESTIONS ON THE NEXT PAGE REGARDING CODE COVERAGE
,300.1.3 Exclusions. This Code (ASME B31.3) excludes the following:
(a) Piping systems designed for internal gage pressures at or above zero but less than 105 kPa (15 psi),
provided the fluid handled is nonflammable, nontoxic, and not damaging to human tissues as defined
in 300.2, and its design temperature is from −29°C (−20°F) through 186°C (366°F)
(b) Power boilers in accordance with BPV Code Section I and boiler external piping which is required
to conform to B31.1
(c) Tubes, tube headers, crossovers, and manifolds of fired heaters, which are internal to the heater
enclosure
(d) Pressure vessels, heat exchangers, pumps, compressors, and other fluid handling or processing
equipment, including internal piping and connections for external piping
Packaged Equipment piping (skid-mounted) Follows B31.3 Code rules
5. Piping inside a Fired heater is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) None of these
Answer = D … Reference: ASME B31.3, Section 300.1.3.c Should know (SI exams) + API 570
6. Piping outside of a Fired heater is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) None of these
Answer = B … Reference: ASME B31.3, Section 300.1.3.c Should know (SI exams) + API 570
7. ASME B31.3 DOES NOT COVER PIPING SYSTEMS IF: (Assume fluid handled is nonflammable,
nontoxic, non-damaging to human tissues, design temps from −29°C (−20°F) to 186°C (366°F):
A) Internal gage pressure is at zero (0) psi
B) Internal gage pressure is at or above 0 psi but less than 15 psi
C) Internal gage pressure is at or above 0 psi (with no maximum pressure limit)
D) None of these is correct because Category D service is covered by ASME B31.3 code
Answer = D … Ref: B31.3, Sect. 300.1.3.a 15 psi rule Should know (SI Exams) + API 570
8. Piping inside a Fired Boiler is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) None of these
Answer = D … Ref: B31.3, Sect 300.1.3.b ASME I Code Should know (SI exams) + API 570
9. Piping outside a Fired Boiler is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) None of these
Ans = A … Ref: B31.3, Sect 300.1.3.b ASME B31.1 Code Should know (SI exams) + API 570
10. Piping inside a Pressure Vessel is covered by what ASME code?
A) ASME B31.1 B) ASME B31.3 C) ASME B31.4 D) None of these
Answer = D … Ref: B31.3, Sect 300.1.3.b ASME VIII Should know (SI exams) + API 570
, ASME B31.3 Practice Exam Questions (28 Chapter 1 Definitions)
11. An example of an autogenous weld is:
A) SMAW B) GMAW-S C) GMAW-STT D) GTAW
Answer = D … Reference: ASME B31.3, Section 300.2 Definition Autogenous weld
12. The intentional deformation of piping during assembly to produce a desired initial
displacement and stress is known as:
A) Bending & Forming B) Cold Bending & Forming
C) Cold Spring D) None of these
Answer = C … Reference: ASME B31.3, Section 300.2 & 319.2.4 Definition Cold Spring
13. Which of these is NOT one of the four recognized ASME B31.3 types of examination?
A) 100% Examination B) Random Examination
C) Spot Examination D) Random Spot Surveillance
Answer = D … Ref: ASME B31.3, Section 300.2 & 344.1.3 Definition Type of Examination
14. Complete examination of all of a specified kind of item in a designated lot of piping is:
A) 100% Examination B) Random Examination
C) Spot Examination D) Random Spot Inspection
Answer = A … Ref: ASME B31.3, Section 300.2 & 344.1.3 Definition 100% Examination
15. A specified partial examination of a percentage of a specified kind of item in a designated
lot of piping is:
A) 100% Examination B) Random Examination
C) Spot Examination D) Random Spot Inspection
Answer = D … Ref: ASME B31.3, Sect 300.2 & 344.1.3 Defin. Random Spot Examination
16. Complete examination of a percentage of a specified kind of item in a designated lot of
piping is:
A) 100% Examination B) Random Examination
C) Spot Examination D) Random Spot Inspection
Answer = B … Ref: ASME B31.3, Sect 300.2 & 344.1.3 Defin. Random Examination
17. A specified partial examination of each of a specified kind of item in a designated lot of
piping, e.g., of part of the length of all shop-fabricated welds in a lot of jacketed piping is:
A) 100% Examination B) Random Examination
C) Spot Examination D) Random Spot Inspection
Answer = C … Ref: ASME B31.3, Sect 300.2 & 344.1.3 Defin. Spot Examination
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