Excessive stress on fluid or pneumatic metal tubing caused by expansion and contraction due to temperature changes can best be avoided by
- providing bends in the tubing.
- avoiding long straight sections of tubing between fixed parts of the structure of the aircraft.
- Both answers above are correct.
Explanation from PART66Online
Thermal expansion and contraction is best accommodated by both providing bends in the run (which flex to absorb movement) and avoiding long rigid straight sections clamped between fixed points (which would build up stress). Since each measure contributes, the correct response is that both are correct.
R
ravi.0813 asked · 16 Feb 2014
The answer should be 'providing bends in the tubing.
Ref.:- page 114 of AC65-9A.
Community Comments (2)
C
Crystal
14 Aug 2015
I also feel it should be providing bends in the tubing
P
PART66Online
14 Aug 2015
Hi guys.
Actually both answers are correct. I have adjusted this question accordingly.
Actually both answers are correct. I have adjusted this question accordingly.
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