May an engine, which previously was on fire, be restarted?

Question

Question PPL(A) - Private Pilot License - Operational Procedure

QuizVDS · Accepted Answer

No, the risk of a reignition of the fire would be too high

QuizVDS · Answer

Yes, if the aircraft is flying at a safe altitude

QuizVDS · Answer

Yes, but only on the ground for the purpose of taxiing

QuizVDS · Answer

Yes, but only if the cause of the fire was a carburettor fire during engine start

PPL(A) EN - Id 10 - May an engine, which previously was on fire, be restarted?