(2025 EXAM) Man 10 chap 2,3. Appendix A,C Flashcards
- Who can close out a CWP?
Diving Officer/SDS
Who can approve temporary alternative system alignment with adequate tag-out procedure while the rec remains open?
CO or designated rep
How do you document rework in the REC log?
place a - after the original rec number ex.24-001-1
O2% greater than what requires O2 worker qualification?
25%
Valve seat tightness time and pressure?
30 minutes plus time to inspect at MOP
How often do you audit rec logs?
Quarterly
Service life of wire rope?
5 years
Hydrostatic/pnuemo test?
1.5 times MOP. No leakage allowed
What is all rope required to have?
Certificate of break
System Drop Test all requirements?
->1000psi air 24 hours, 1% of initial pressure
-<1000psi air 6 hours, 5% of initial pressure
-Helium/HEOX 24 hours, 1% of initial pressure
-O2 24 hours, 0 allowable drop
Static test for DHS?
200% for 10 minutes
Dynamic Test?
150% run through 3 complete cycles of operation
What do you do with rope that has exceeded 75% of its minimum breaking strength?
Discard
Replacement criteria for Wire rope?
6 broken wire in one rope lay length, or three broken wires in one strand lay length
Category 1D card?
Corrective action must be accomplished on a specified component prior to its use, but overall system retains its certification.