Only the distance question has yet to be answered adequately. From Australian CAO (Civil Aviation Order) 20.9, para 5.1.4.
and turbine engines, in addition, shall not be operated within the appropriate distance specified below of
any other aircraft, fuelling equipment or exposed public areas
which lie to the rear of and within a 15 degree arc either side of the exhaust outlet axis of that engine:
Engine Type Power Condition Minimum Distance Metres
- Turbo-prop At or below normal slow taxiing power 15(50 ft)
- (Turbo prop) At power used to initiate movement of a stationary aircraft 23(75 ft)
- Turbo-jet At or below normal slow taxiing thrust 30(100 ft)
- (turbo-jet) At thrust used to initiate movement of a stationary aircraft 46(150 ft)