A cadet sees an isolation tag on a breaker with no one around. Can they assume it's safe to ignore and the isolation is still active?

A. They should remove the tag themselves if they believe the job is likely finished

B. Isolation tags only apply during the original shift they were placed in

C. They should treat the tag as meaning the equipment is isolated and not to be operated, but should not personally remove it or make assumptions — isolation status should be confirmed through a proper handover, not guesswork

D. They can safely ignore the tag if the equipment appears to be functioning normally

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