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第一章 单元测试
1、 The description in Chapter 73 of AMM is about ( ).
A:Exhaust System
B:Engine Fuel and Control System
C:Oil System
D:Air System
答案: Engine Fuel and Control System
2、 How many engine mounts does the CFM56-3 have?（ ）。
A:1
B:2
C:3
D:4
答案: 2
3、 CFM56-3 is a _ turbofan engine. ( )
A:High bypass, three rotor
B:Low bypass, dual rotor
C:High bypass, dual rotor
D:Low bypass, three rotor
答案: High bypass, dual rotor
4、 The data plate has NOT the data of（ ）。
A:Engine model number
B:Thrust ratings
C:Airframe type
D:TC Number
答案: Airframe type
5、 The CFM56-3 engine supplies ____ for the Boeing 737-300/-400/-500 aircraft. ( )
A:thrust, electric, hydraulic, pneumatic
B:thrust, electric, hydraulic, fuel and oil
C:thrust, bleed air, hydraulic, pneumatic
D:thrust, lift force, hydraulic, pneumatic
答案: thrust, electric, hydraulic, pneumatic
第二章 单元测试
1、 Which component on CFM56-3 engine produces the most thrust? ( )
A:Turbine
B:Combustor
C:Exhaust nozzle
D:Fan
答案: Fan
2、 The aerodynamic station of 12 on CFM56-3 engine is ( ).
A:The primary air inlet
B:The engine inlet
C:The secondary air inlet
D:The inlet of booster
答案: The secondary air inlet
3、 Which bearing can hold the axially load of the N2 rotor? ( )
A:No.1 ball bearing
B:No.2 ball bearing
C:No.3 ball bearing
D:No.4 roller bearing
答案: No.3 ball bearing
4、 What bearings on CFM56-3 engine are roller bearing? ( )
A:No.1, No.2 and No.3 bearings
B:No.2, No.3 and No.4 bearings
C:No.3, No.4 and No.5 bearings
D:No.2, No.4 and No.5 bearings
答案: No.2, No.4 and No.5 bearings
5、 The power source for driving fan and booster rotor is from ( ).
A:HPT
B:CSD assembly
C:LPT
D:Air-driving gear box
答案: LPT
6、 The air used for CFM56-3 HPT blades cooling is ( ).
A:CDP air
B:HPC 5th air
C:Booster discharge air
D:HPC 4th air
答案: CDP air
7、 How many fan blades does CFM56-7B engine have? ( )
A:18
B:24
C:36
D:38
答案: 24
8、 Which balancing screw for the rebalance of CFM56-3 engine is the lightest? ( )
A:P01
B:P06
C:P07
D:P08
答案: P07
9、 In the following accessory pads on CFM56-3 engine, which one need to use carbon seal? ( )
A:Lube unit and fuel pump
B:Lube unit and hydraulic pump
C:Air starter and hydraulic pump
D:Control alternator and fuel pump
答案: Air starter and hydraulic pump
10、 How many stages of LPT does CFM56-3 engine have? ( )
A:1
B:2
C:3
D:4
答案: 4
第三章 单元测试
1、 In the following descriptions, which one is NOT the function of MEC on CFM56-3 engine? ( )
A:Schedules fuel flow
B:Schedules VSV’s and VBV’s positions
C:Schedules the HPTCC valve
D:Schedules the LPTCC valve
答案: Schedules the LPTCC valve
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