Which type crack can be detected by magnetic particle inspection using either circular or longitudinal magnetisation?
- transverse.
- longitudinal.
- 45degrees.
Explanation
Each magnetisation direction best reveals defects lying across its flux: circular field finds longitudinal cracks, longitudinal field finds transverse cracks. A crack at 45 degrees presents a component across both fields, so it produces a usable indication under either method, whereas a purely longitudinal or transverse crack is reliably found by only one of them.
mwongela asking:
which crack is this?
Community Comments (6)
D
dimky Posts: 514 09.08.2013 / 11:17
diagonal crack I think... not transverse and not longitudinal. :)
M
mwongela Posts: 18 11.08.2013 / 08:28
hehehe ok....i thought so too
S
serzeb Posts: 1 12.08.2013 / 01:24
longitudinal.
M
mwongela Posts: 18 13.08.2013 / 10:57
serzeb, it cant be coz its among the choices which are wrong :-(
M
mwongela Posts: 18 13.08.2013 / 10:58
.... i assume
P
princessanam Posts: 1 18.10.2014 / 11:20
45
Please Sign In to post a comment.