A cadet is asked by a new trainee why one person can't both do the job and sign off the permit for it. What's the basic reason?

A. The system relies on two different people independently checking the same risk — having one person fill both roles removes that second, independent check

B. It's only required for enclosed space work, not other permit types

C. It's to make sure two people share the blame if something goes wrong

D. It's mainly a paperwork convention with no real safety purpose

A. There is no fixed maximum — it depends entirely on the job

B. 48 hours, renewable once without re-inspection

C. 7 days, matching the standard watch rotation

D. 24 hours from issue, with any shorter job-specific time limits also stated on the permit

A. Check elapsed time against the 24-hour limit, recognise it's close to expiry, and flag to the authorising officer that revalidation will be needed rather than letting it lapse unnoticed

B. Cancel the job immediately without consulting the authorising officer

C. Wait until the 24-hour mark is actually reached before mentioning anything

D. Accept the outgoing OOW's assessment and take no further action since the job scope hasn't changed