National Board Inservice Inspector (NB IS)
Certification Exam COMPLETE VERIFIED QUESTIONS
AND DETAILED SOLUTIONS||NEWEST EXAM!!!
6. On inspection of an electric boiler you observe no
washout or inspection openings. The
volume of this boiler must to be less than:
a) 4 cu. Ft
b) 5 cu. ft.
c) 2 cu. ft.
d) 3 cu. ft. - Answer-6. Answer: b) ASME Section I
Paragraph PEB-1 0. I
7. As part of a repair of a power piping system constructed
to ASME B31.1 piping code, a
question was raised by the "R" certificate holder if the pipe
supports which are being
replaced, in conjunction with the repair, need to be listed
on the repair report?
a) They are not pressure parts and do not require listing.
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b) They are within the scope of the piping code but do not
require listing.
c) They are not within the scope of the power piping code.
d) They control the stress within the pipe and are required
to be listed. - Answer-. Answer: b) ASME B31 . I
Paragraph 100. I .1
8. Corrosion fatigue in a deaerator is evidenced by the
presence of:
a) Severe thinning
b) Pitting with a gray coloring
c) Cracking
d) Rust colored area - Answer-8. Answer: c) NBIC Part 2
Sections 2 and 3 Paragraphs 2.3.6.1 and 3.3.2(c)
9. When using alternative welding methods in lieu of post
weld heat treatment (PWHT), the
welding procedures shall be qualified in accordance with:
a) The NBIC does not permit alternatives to PWHT
b) The original code of construction for SMA W welding
process
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c) Magnetic Particle (MT) or liquid penetrant (PT)
examination
d) The procedure qualification requirements of ASME
Section IX - Answer-9. Answer: d) NBJC- Part 3 Section 2
Paragraph 2.5.3(d)
10. The cylindrical shell of a 15psi steam heating boiler is
to be repaired by installing a flush
patch. The weld will be a single "V" groove, welded from
one side, with a backing strip
that will be left in place. The boiler shell is fabricated from
SA-515 Gr. 70 material and is
60" (1524mm) inside diameter. What is minimum thickness
of the patch plate?
a) .250" (6mm)
b) .080" (2mm)
c) .170" (4mm)
d) .076" (1.9mm) - Answer-10. Answer: a) ASME Section
N Paragraphs HG-300a, HG-301.1, HF-301. l(a), Table
HF-
300.1, and HW-702(b)
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11. Any change made to an item described on the original
Manufacturer's Data Report which
affects the pressure containing capability of the pressure
retaining item is considered:
a) A repair
b) An alteration
c) A modification
d) A routine repair - Answer-11. Answer: b) NBIC- Part 3
Section 9 Paragraph 9.1
1. Following a repair of a power boiler, what is the
minimum metal temperature prior to the
application of pressure test?
a) 60° F (l5°C)
b) 65°F (l8°C)
c) 70° F (20°C)
d) 75° F (24°C) - Answer-I. Answer: c) NBIC Part 3 Section
4 Paragraph 4.4.1 (a)(3) and ASME Section I - PG-99
2. After the alteration of a pressure vessel, the pressure
test shall not exceed times