AIGF Exit Exam • Set 3 Question 10 of 30
In Direct connections of Piping fabrication, Screwed couplings used for accessory lines and instrumentation lines with _______________
✓
Direct Answer
Option C: external diameters of 25 mm or less
Under IGF Code piping rules, threaded screwed fittings are limited to small-bore instrumentation and sampling lines of 25 mm OD or less.
All Options
A
internal diameters of 25 mm or less
B
internal diameters of 25 mm or more
C
external diameters of 25 mm or less
(Correct Answer)
D
external diameters of 25 mm or more
Detailed Explanation & Context
Under IGF Code piping rules, threaded screwed fittings are limited to small-bore instrumentation and sampling lines of 25 mm OD or less.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Ships subject to the IGF Code (AIGF).
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