Question id 141 - Aircraft General Knowledge - PPL(H) - Private Pilot License

A bypass valve opens thus enabling the circulation to continue, debris will not be filtered
The oil circulation will end after 30 minutes so that a proper engine run will not be guaranteed
A bypass valve opens thus enabling the circulation to continue, debris will be filtered by an alternate filter
The oil circulation will end after 15 minutes so that a proper engine run will not be guaranteed