第七章单元测试
- In the following descriptions about the oil system of CFM56-3 engine, which one is TRUE? ( )
- What air source is used to pressurize rear sump in CFM56 engines? ( )
- The oil cooler of oil system on CFM56-3 engine are located in ( ).
- How many oil pumps does CFM56-3’s oil system have? ( )
- On CFM56-3 engine, the oil temperature indicates the pressure of ( ).
A:The oil tank is vented to the ambient air directly
B:The oil quantity can be got from the sight glass of the oil tank
C:The oil sumps are Dry-Sump designed
D:None of the above
答案:The oil sumps are Dry-Sump designed
A:Booster discharge air
B:Fan discharge air
C:CBP air
D:the 5th bleed air from HPC
A:the oil tank
B:the AGB
C:the oil supply circuit
D:the oil scavenge circuit
A:2
B:1
C:4
D:3
A:Oil scavenge.
B:Oil supply.
C:Oil tank.
D:Oil venting.
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