第一章 单元测试

1、单选题:
The description in Chapter 73 of AMM is about ( ).
选项:
A:Engine Fuel and Control System
B:Exhaust System
C:Oil System
D:Air System
答案: 【Engine Fuel and Control System

2、单选题:
How many engine mounts does the CFM56-3 have?( )。
选项:
A:3
B:4
C:2
D:1
答案: 【2

3、单选题:
CFM56-3 is a _______ turbofan engine. ( )
选项:
A:High bypass, three rotor
B:High bypass, dual rotor
C:Low bypass, dual rotor
D:Low bypass, three rotor
答案: 【High bypass, dual rotor

4、单选题:
The data plate has NOT the data of( )。
选项:
A:Engine model number
B:Thrust ratings
C:Airframe type
D:TC Number
答案: 【Airframe type

5、单选题:
The CFM56-3 engine supplies ____ for the Boeing 737-300/-400/-500 aircraft. ( )
选项:
A:thrust, bleed air, hydraulic, pneumatic
B:thrust, lift force, hydraulic, pneumatic
C:thrust, electric, hydraulic, pneumatic
D:thrust, electric, hydraulic, fuel and oil
答案: 【thrust, electric, hydraulic, pneumatic

第二章 单元测试

1、单选题:
Which component on CFM56-3 engine produces the most thrust? ( )
选项:
A:Exhaust nozzle
B:Combustor
C:Turbine
D:Fan
答案: 【Fan

2、单选题:
The aerodynamic station of 12 on CFM56-3 engine is ( ).
选项:
A:The secondary air inlet
B:The engine inlet
C:The primary air inlet
D:The inlet of booster
答案: 【The secondary air inlet

3、单选题:
Which bearing can hold the axially load of the N2 rotor? ( )
选项:
A:No.2 ball bearing
B:No.1 ball bearing
C:No.4 roller bearing
D:No.3 ball bearing
答案: 【No.3 ball bearing

4、单选题:
What bearings on CFM56-3 engine are roller bearing? ( )
选项:
A:No.3, No.4 and No.5 bearings
B:No.1, No.2 and No.3 bearings
C:No.2, No.3 and No.4 bearings
D:No.2, No.4 and No.5 bearings
答案: 【No.2, No.4 and No.5 bearings

5、单选题:
The power source for driving fan and booster rotor is from ( ).
选项:
A:HPT
B:CSD assembly
C:LPT
D:Air-driving gear box
答案: 【LPT

6、单选题:
The air used for CFM56-3 HPT blades cooling is ( ).
选项:
A:CDP air
B:HPC 4th air
C:HPC 5th air
D:Booster discharge air
答案: 【CDP air

7、单选题:
How many fan blades does CFM56-7B engine have? ( )
选项:
A:38
B:18
C:36
D:24
答案: 【24

8、单选题:
Which balancing screw for the rebalance of CFM56-3 engine is the lightest? ( )
选项:
A:P06
B:P08
C:P07
D:P01
答案: 【P07

9、单选题:
In the following accessory pads on CFM56-3 engine, which one need to use carbon seal? ( )
选项:
A:Lube unit and fuel pump
B:Control alternator and fuel pump
C:Lube unit and hydraulic pump
D:Air starter and hydraulic pump
答案: 【Air starter and hydraulic pump

10、单选题:
How many stages of LPT does CFM56-3 engine have? ( )
选项:
A:4
B:1
C:2
D:3
答案: 【4

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