ATPL - Airline Transport Pilot license: Aircraft General Knowledge - Airframe, Systems, Powerplant 10 Questions no time limit

1 - Which of these statements about structural design are correct and incorrect? 1) In structural design, FAIL SAFE implies the structure will never fail. 2) In structural design, SAFE LIFE implies the structure will never fail during a declared time period or number of cycles.
2 - According to EASA CS the allowable quantitative average failure probability per flight hour for a HAZARDOUS FAILURE should be on the order of:
3 - For piston engines, mixture ratio is the ratio between the:
4 - An aeroplane equipped with fully powered flight controls (irreversible type):
5 - When the combustion gases pass through a turbine the:
6 - About a twin spool compressor:
7 - In a steep turn to the left, when using spoilers...
8 - Under EASA Air OPS Part-CAT (CAT.IDE.A.250), an aeroplane with a maximum operational passenger seating configuration (MOPSC) of 7 to 30 seats must be equipped in the passenger compartment with at least:
9 - Excessive priming of a piston engine should be avoided because: 1. it drains the carburettor float chamber. 2. the risk of engine fire. 3. the risk of flooding the engine. 4. it fouls the spark plugs. The combination that regroups all of the correct statements is:
10 - In an aircraft hydraulic system, a hydraulic fuse is used primarily: