1. Following a restore of a power boiler, what's the minimum metal temperature prior to the
software of stress check?
A) 60° F (l5°C)
b) 65°F (l8°C)
c) 70° F (20°C)
d) 75° F (24°C) - ANS-I. Answer: c) NBIC Part three Section 4 Paragraph 4.Four.1 (a)(three)
and ASME Section I - PG-ninety nine
10. The cylindrical shell of a 15psi steam heating boiler is to be repaired through installing a
flush
patch. The weld could be a unmarried "V" groove, welded from one aspect, with a backing strip
on the way to be left in place. The boiler shell is product of SA-515 Gr. 70 fabric and is
60" (1524mm) inside diameter. What is minimum thickness of the patch plate?
A) .250" (6mm)
b) .080" (2mm)
c) .One hundred seventy" (4mm)
d) .076" (1.9mm) - ANS-10. Answer: a) ASME Section N Paragraphs HG-300a, HG-301.1,
HF-301. L(a), Table HF-
300.1, and HW-702(b)
11. Any trade made to an object defined on the original Manufacturer's Data Report which
influences the stress containing functionality of the strain retaining object is taken into
consideration:
a) A restore
b) An alteration
c) A change
d) A habitual repair - ANS-eleven. Answer: b) NBIC- Part three Section 9 Paragraph nine.1
12. There-rating of a vessel will be documented on a:
a) National Board Form R-1
b) National Board Form R-2
c) National Board Form R-3
d) National Board Form NB-5 - ANS-12. Answer: b) NBIC- Part 3 Section three Paragraph
three.Four.1, Section 9 Paragraph nine.1, and Section five
Paragraph five.5.2
13. Is chargeable for figuring out whether or not or no longer it is realistic to
perform a stress test on a repaired item.
A) The "R" Certificate holder
,b) The Inspector
c) The proprietor or consumer
d) The Jurisdiction - ANS-thirteen. Answer: a) NBIC- Part 3 Section four Paragraph 4.Four(c)
14. From a repair company's standpoint, what is the precept motive for having a excellent
device manual?
A) It presents a area to explain the corporations merchandise
b) It affords an opportunity for the nice manage supervisor to be identified
c) It presents a proper approach for defining requirements
d) It affords a source of facts for the Authorized Inspector - ANS-14. Answer: c) NBIC Part three
Section 1 Paragraph 1.6.5.1
15. The fireside surfaces of tubes in horizontal firetube boilers generally become worse more
unexpectedly on the ends:
a) Ends furthest from the hearth.
B) Ends nearest fire
c) Lower shell segment
d) Upper shell phase - ANS-15. Answer: b) - NBIC - Part 2 Section 2 Paragraph
2.2.12.2(c)(three)
sixteen. During the alteration of a power boiler, it will likely be necessary to cast off the unique
ASME
stamping. In addition to witnessing the making of the facsimile, switch of the stamping,
what different hobby is the Inspector required to witness?
A) The making of a brand new nameplate
b) Completion of associated stamping documentation
c) Writing the letter to the jurisdiction asking for permission to remove the stamping
d) Obliteration of the antique stamping - ANS-16. Answer: d) NBIC - Part 3 Section 5 Paragraph
five.11
17. A horizontal strain vessel is to be altered by way of drilling and tapping 2- 3/eight" (60mm)
diameter openings, 12" (305mm) center to center alongside the longitudinal centerline of the
vessel. The U-lA file lists the vessel as 30" (762mm) ID with a wall thickness of7/8"
(22mrn), Stress = 17500psi (121MPa), weld seam efficiency is 85%, and a MA WP of
800psi (5.5MPa). Does this configuration follow ASME Section VIII and what
strain could be allowed because of this modification?
A) Configuration does not comply with ASME Section VIII and MA WP = 838psi
(5.7MPa)
b) Configuration complies with ASME Section VIII and MAWP = 838psi (five.7MPa)
c) Configuration does now not comply with ASME Section VIII and MA WP = 807psi
(5.6MPa)
d) Configuration complies with ASME Section VIII and MA WP = 807psi (5.6MPa) - ANS-17.
Answer: b)Section VIII Paragraphs UG-27(c)(l) and UG-36(c)(3)(b) Holes do not require
reinforcement- UG-36(c)(three)(c) Minimum distance sum of diameters. The holes is 12" - OK ~
UG -27
, P= SEt
R+.6t
p = (17500 x.85)(.875)
15 + (.6)(.875)
P = 838psi
18. Pressure preserving items repaired according with the National Board Inspection Code
(NBIC) will be stamped or have a nameplate as required in:
a) Part 3 - Section five Paragraph five.2 states a nameplate or stamping may be ignored
furnished either Form R-1 or R-2 is completed as relevant
b) Part three- Section five Paragraph five.7.2
c) Stamping or a nameplate is only required for alterations
d) The authentic production code together with the best ASME Symbol stamp - ANS-18.
Answer: b) NBIC Part three Section five paragraph five.7.2 and 5.12.2
19. Above what size limits is the AI required via the ASME Code to carry out a very last
inspection
of an electric boiler?
(a) 1100 kW per vessel and 600 volts.
(b) 800 kW in line with vessel and 600 volts.
(c) 800 kW in line with vessel and 60 volts.
(d) Not Required. - ANS-19. Answer: b) ASME Section I Paragraph PEB-18.1
2. After the alteration of a pressure vessel, the pressure check shall no longer exceed times
the maximum allowable working pressure.
A) 1
b) 1-1/4
c) 1 half
d) 2 - ANS-2. Answer: c) NBIC- Part three Section 4 Paragraph 4.Four.2(a)(l)
20. Re-ending or piecing pipes or tubes is authorized supplied the thickness of the remaining
pipe or tube is not much less than of that required via the original Code of
Construction.
A) 70%
b) 80%
c) ninety%
d Minimum thickness - ANS-20. Answer: d) NBIC- Part three Section 3 Paragraph
three.Three.Four.5
21. Boiler water have to be maintained at pH eleven. Generally, the better the pH the:
a) Greater quantity of hard scale will adhere to the boiler surfaces
b) More likely the dissolved solids will precipitate out and cling to boiler surfaces.
C) More soluble a few solids are in water
d) Less soluble a few solids are in water - ANS-21. Answer: d) NB Boiler Feedwater Guidelines
Paragraph four.0.7
22. As part of the procedure of accepting an alteration, you are reviewing the qualification of
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